{"id":267175,"date":"2023-11-16T09:00:00","date_gmt":"2023-11-16T08:00:00","guid":{"rendered":"https:\/\/sherpas.com\/blog\/?p=267175"},"modified":"2023-11-10T18:33:01","modified_gmt":"2023-11-10T17:33:01","slug":"longueur-onde","status":"publish","type":"post","link":"https:\/\/sherpas.com\/blog\/longueur-onde\/","title":{"rendered":"Tout comprendre sur la longueur d\u2019onde \ud83e\udee8"},"content":{"rendered":"\n<p>Pour ce nouvel article, Les Sherpas t&#8217;emm\u00e8nent <strong>dans le monde de la physique.<\/strong> Dit comme \u00e7a, \u00e7a peut faire peur. \ud83d\ude30&nbsp;<\/p>\n\n\n\n<p>Mais ne t\u2019inqui\u00e8te pas, \u00e0 la fin de cet article et gr\u00e2ce \u00e0 l\u2019aide de <a href=\"https:\/\/sherpas.com\/cours\/physique\" data-type=\"link\" data-id=\"https:\/\/sherpas.com\/professeurs?subject=Physique\">quelques cours de physique avec nos professeurs<\/a>, tu seras un as de cette notion !&nbsp;<\/p>\n\n\n\n<p>En route ! \ud83d\ude98<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"377\" height=\"212\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/11\/out1-5.gif\" alt=\"TheKairi78, YouTuber, qui roule en voiture\" class=\"wp-image-267176\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"quest-ce-quune-longueur-donde\">Qu\u2019est-ce qu\u2019une longueur d\u2019onde ?&nbsp;<\/h2>\n\n\n\n<p>Tout d\u2019abord, une onde est <strong>une perturbation qui se propage \u00e0 travers un milieu<\/strong>, mat\u00e9riel ou non. Elle transporte de l&rsquo;\u00e9nergie sans d\u00e9placement permanent de mati\u00e8re. <strong>Les longueurs d\u2019ondes sont omnipr\u00e9sentes dans notre univers<\/strong> et peuvent se manifester sous de nombreuses formes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-differentes-ondes\">Les diff\u00e9rentes ondes&nbsp;<\/h3>\n\n\n\n<p>Comme dit pr\u00e9c\u00e9demment, il existe de nombreux types d&rsquo;ondes autour de nous.<\/p>\n\n\n<ul class=\"list-formatted\">\n                <li data-symbol=\"\ud83d\udc49\">\n            <span>\n            <p><span style=\"font-weight: 400\"><strong>Les ondes m\u00e9caniques<\/strong>, telles que les ondes sonores et sismiques, qui n\u00e9cessitent un milieu mat\u00e9riel pour se propager.<\/span><\/p>\n\n            <\/span>\n        <\/li>\n                <li data-symbol=\"\ud83d\udc49\">\n            <span>\n            <p><span style=\"font-weight: 400\"><strong>Les ondes \u00e9lectromagn\u00e9tiques<\/strong>, comme la lumi\u00e8re et les ondes radio, qui se propagent \u00e0 travers le vide et n&rsquo;ont pas besoin de milieu mat\u00e9riel.<\/span><\/p>\n\n            <\/span>\n        <\/li>\n                <li data-symbol=\"\ud83d\udc49\">\n            <span>\n            <p><span style=\"font-weight: 400\"><strong>Les ondes de surface<\/strong>, telles que les vagues \u00e0 la surface de l&rsquo;eau.<\/span><\/p>\n\n            <\/span>\n        <\/li>\n                <li data-symbol=\"\ud83d\udc49\">\n            <span>\n            <p><span style=\"font-weight: 400\"><strong>Les ondes stationnaires<\/strong>, qui semblent rester \u00e0 un endroit pr\u00e9cis plut\u00f4t que de se propager.<\/span><\/p>\n\n            <\/span>\n        <\/li>\n            <\/ul>\n    \n\n\n\n<h3 class=\"wp-block-heading\" id=\"la-longueur-donde-kesako\">La longueur d\u2019onde, k\u00e9sako ? \ud83e\udd14<\/h3>\n\n\n\n<p>La longueur d&rsquo;onde est <strong>une mesure fondamentale associ\u00e9e aux ondes<\/strong>. Elle repr\u00e9sente <strong>la distance entre deux points identiques d&rsquo;une onde<\/strong>, tels que deux creux successifs, par exemple. En d&rsquo;autres termes, la longueur d&rsquo;onde calcule la distance spatiale entre deux points \u00e9quivalents de l&rsquo;onde.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p><span style=\"font-weight: 400\">Le savais-tu ? \ud83d\udca1<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400\">La fr\u00e9quence d&rsquo;une onde est identique lorsque l&rsquo;onde passe d&rsquo;un milieu \u00e0 un autre avec une vitesse diff\u00e9rente. Mais sa longueur d&rsquo;onde peut varier.<\/span><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>La longueur d&rsquo;onde est <strong>li\u00e9e \u00e0 la taille des motifs r\u00e9p\u00e9titifs d&rsquo;une onde<\/strong>. Dans le cas de la lumi\u00e8re, la longueur d&rsquo;onde correspond \u00e0 <strong>la distance entre deux cr\u00eates<\/strong> ou deux creux d&rsquo;une onde \u00e9lectromagn\u00e9tique.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Une cr\u00eate, c&rsquo;est quoi ? <span style=\"font-weight: 400\">\ud83e\uddd0<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400\">\u00a0Une cr\u00eate est <strong>la partie haute d&rsquo;une onde<\/strong> alors qu&rsquo;un creux est la partie basse.<\/span><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>La longueur d&rsquo;onde est un concept essentiel pour comprendre et caract\u00e9riser les ondes, que ce soit dans <strong>le domaine de la physique ou encore de l&rsquo;astronomie<\/strong>. Elle permet de d\u00e9crire la mani\u00e8re dont elles se propagent \u00e0 travers l&rsquo;espace et influencent notre perception des ph\u00e9nom\u00e8nes ondulatoires.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/11\/out1-6.gif\" alt=\"Dame qui ondule les bras\" class=\"wp-image-267181\" style=\"width:416px;height:234px\" width=\"416\" height=\"234\" \/><figcaption class=\"wp-element-caption\"><em>Les ondes quand elles se propagent \u00e0 travers l\u2019espace<\/em><\/figcaption><\/figure>\n<\/div>\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part&amp;rsquo; global #1 = CPG1\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Martin2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Martin<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">23\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Simon2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Simon<\/p>                          <p class=\"push__teachers-school\">4e ann\u00e9e de m\u00e9decine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Victor2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Victor<\/p>                          <p class=\"push__teachers-school\">ESCP<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Agathe2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Agathe<\/p>                          <p class=\"push__teachers-school\">ENS Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Louise2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Louise<\/p>                          <p class=\"push__teachers-school\">Mines ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">24\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fabien2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fabien<\/p>                          <p class=\"push__teachers-school\">T\u00e9l\u00e9com Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">20\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jeanne2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jeanne<\/p>                          <p class=\"push__teachers-school\">Aix-Marseille Universit\u00e9<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fanny2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fanny<\/p>                          <p class=\"push__teachers-school\">Ponts ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Ton premier cours particulier est offert ! <span role=\"img\" aria-label=\"\ud83c\udf81\">\ud83c\udf81<\/span><!-- notionvc: 91b6b7d7-50f2-46f4-ae1f-ecbabe834aad --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos profs sont pass\u00e9s par les meilleures \u00e9coles et universit\u00e9s.<!-- notionvc: 21bb66b6-b36d-4ce8-8950-173722d75a1e --><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: #ffffff; border-color: ; background-color: \"\n\n                                    >\n                                        J&rsquo;EN PROFITE MAINTENANT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-differentes-unites\">Les diff\u00e9rentes unit\u00e9s<\/h3>\n\n\n\n<p>La longueur d&rsquo;onde est souvent not\u00e9e \u00e0 l&rsquo;aide de <strong>la lettre grecque lambda (\u03bb).<\/strong><\/p>\n\n\n\n<p>Dans le syst\u00e8me international (SI), la longueur d\u2019onde est <strong>mesur\u00e9e en m\u00e8tre (m)<\/strong>. Cependant, dans le syst\u00e8me usuel, elle est <strong>mesur\u00e9e en nanom\u00e8tre (nm)<\/strong>.&nbsp;<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Le savais-tu ? <span style=\"font-weight: 400\">\ud83d\udca1<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400\">1 nm = 10<sup>-9<\/sup><\/span><span style=\"font-weight: 400\">\u00a0m<\/span><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>Il existe une multitude d\u2019unit\u00e9s de mesure comme les microm\u00e8tres, les Angstrom, les picom\u00e8tres ou encore les centim\u00e8tres. <strong>Mais ce sont cl\u00e9s deux unit\u00e9s ci-dessus qui sont la plupart du temps utilis\u00e9es.&nbsp;<\/strong><\/p>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part&amp;rsquo; global #2 = CPG2\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Cle\u0301mence2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Cl\u00e9mence<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Thibault2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Thibault<\/p>                          <p class=\"push__teachers-school\">ENS Paris Ulm<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">20\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Sophie2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Sophie<\/p>                          <p class=\"push__teachers-school\">Sciences Po Bordeaux<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">12\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Noemie2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">No\u00e9mie<\/p>                          <p class=\"push__teachers-school\">M2 en droit \u00e0 Assas<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fanny2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fanny<\/p>                          <p class=\"push__teachers-school\">Ponts ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Simon2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Simon<\/p>                          <p class=\"push__teachers-school\">4e ann\u00e9e de m\u00e9decine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Nicolas2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Nicolas<\/p>                          <p class=\"push__teachers-school\">CentraleSup\u00e9lec<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Victor2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Victor<\/p>                          <p class=\"push__teachers-school\">ESCP<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Besoin d&rsquo;un prof particulier ? <span role=\"img\" aria-label=\"\u2728\">\u2728<\/span><!-- notionvc: 9b5ed38b-ea2e-4d3c-a3bb-f0091c2eedd2 --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos profs sont l\u00e0 pour t&rsquo;aider \u00e0 progresser !<\/p>\n<p>&nbsp;<\/p>\n<p><!-- notionvc: 20490bdd-6579-484b-9d99-0ff0bc1aa8e7 --><\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        JE PRENDS UN COURS OFFERT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"les-differentes-longueurs-dondes\">Les diff\u00e9rentes longueurs d\u2019ondes&nbsp;<\/h2>\n\n\n\n<p>Apr\u00e8s avoir parl\u00e9 des longueurs d\u2019ondes de mani\u00e8re g\u00e9n\u00e9rale, parlons en plus en d\u00e9tail. \ud83d\ude09<\/p>\n\n\n\n<p>En effet, il existe une multitude de longueurs d\u2019ondes, qui sont toutes diff\u00e9rentes entre elles. Eh oui, dans notre quotidien, nous sommes entour\u00e9s par elles, dans une multitude de situations.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"longueurs-dondes-de-la-lumiere\">Longueurs d\u2019ondes de la lumi\u00e8re&nbsp;<\/h3>\n\n\n\n<p>Les longueurs d&rsquo;onde de la lumi\u00e8re se situent dans un domaine bien sp\u00e9cifique du <strong>spectre \u00e9lectromagn\u00e9tique.<\/strong> Elles sont une onde \u00e9lectromagn\u00e9tique, et leur gamme de longueurs d&rsquo;onde sont <strong>essentielles pour comprendre la perception des couleurs par l&rsquo;\u0153il humain<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/11\/blink-wide-eye-min.gif\" alt=\"homme avec de grosses lunettes\" class=\"wp-image-267184\" style=\"width:261px;height:196px\" width=\"261\" height=\"196\" \/><\/figure>\n<\/div>\n\n\n<p>Le spectre lumineux est la partie du spectre \u00e9lectromagn\u00e9tique que l&rsquo;\u0153il humain peut percevoir. Il s&rsquo;\u00e9tend approximativement <strong>de 380 nm \u00e0 750 nm en longueur d&rsquo;onde.<\/strong><\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Le savais-tu ? <span style=\"font-weight: 400\">\ud83d\udca1<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400\">Cette gamme de longueurs d&rsquo;onde est la <strong>grande responsable de la vision des couleurs.<\/strong><\/span><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>Les longueurs d&rsquo;onde de la lumi\u00e8re visible sont responsables des <strong>diff\u00e9rentes couleurs de l&rsquo;arc-en-ciel<\/strong>, qui peuvent \u00eatre observ\u00e9es lorsque la lumi\u00e8re blanche du soleil est dispers\u00e9e par des gouttelettes d&rsquo;eau dans l&rsquo;atmosph\u00e8re. Les couleurs de l&rsquo;arc-en-ciel, dans l&rsquo;ordre de longueur d&rsquo;onde croissante, sont <strong>violet, indigo, bleu, vert, jaune, orange et rouge. \ud83c\udf08<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/11\/spongebob-squarepants-inspiration.gif\" alt=\"Bob l'\u00e9ponge qui fait un arc-en-ciel avec ses mains\" class=\"wp-image-267186\" style=\"width:297px;height:212px\" width=\"297\" height=\"212\" \/><\/figure>\n<\/div>\n\n\n<p>Chaque couleur correspond \u00e0 une longueur d\u2019onde associ\u00e9es (en nm). Par exemple, <strong>le violet est associ\u00e9 \u00e0 des longueurs d&rsquo;onde plus courtes (environ 380-450 nm)<\/strong>, tandis que <strong>le rouge est associ\u00e9 \u00e0 des longueurs d&rsquo;onde plus longues (environ 620-750 nm)<\/strong>. Les autres couleurs de l&rsquo;arc-en-ciel sont prises en sandwich entre ces deux longueurs d\u2019ondes. \ud83e\udd6a<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Bon \u00e0 savoir <span style=\"font-weight: 400\">\ud83d\udc4d<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400\">La connaissance des longueurs d&rsquo;onde de la lumi\u00e8re visible est essentielle dans de nombreux domaines, <strong>de l&rsquo;art \u00e0 la science<\/strong>. Elle est utilis\u00e9e dans la conception des \u00e9crans d&rsquo;ordinateurs et de t\u00e9l\u00e9viseurs, dans la photographie, la colorim\u00e9trie, l&rsquo;astronomie, et bien d&rsquo;autres domaines.<\/span><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"longueurs-donde-sonores\">Longueurs d\u2019onde sonores<\/h3>\n\n\n\n<p>Les longueurs d&rsquo;onde sonores sont associ\u00e9es aux ondes sonores, qui sont de <strong>la pression se propageant \u00e0 travers un milieu qui est g\u00e9n\u00e9ralement de l&rsquo;air.&nbsp;<\/strong><\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Le savais-tu ? <span style=\"font-weight: 400\">\ud83d\udca1<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400\">Contrairement \u00e0 la lumi\u00e8re, qui est une onde \u00e9lectromagn\u00e9tique, <strong>le son est une onde m\u00e9canique<\/strong> qui n\u00e9cessite un milieu mat\u00e9riel pour se propager.\u00a0<\/span><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>Les longueurs d&rsquo;onde des sons audibles par l&rsquo;oreille humaine varient consid\u00e9rablement en fonction de la fr\u00e9quence. La plage de fr\u00e9quences audibles pour la plupart des \u00eatres humains s&rsquo;\u00e9tend g\u00e9n\u00e9ralement d&rsquo;environ <strong>20 hertz (Hz) \u00e0 20 kHz (kilohertz).&nbsp;<\/strong><\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Le savais-tu ? <span style=\"font-weight: 400\">\ud83d\udca1<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400\">Les sons en dehors de cette gamme ne sont g\u00e9n\u00e9ralement <strong>pas per\u00e7us par l&rsquo;oreille humaine.<\/strong><\/span><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>La vitesse \u00e0 laquelle le son se propage d\u00e9pend du milieu \u00e0 travers lequel il voyage. La vitesse du son est un facteur important pour calculer la longueur d&rsquo;onde. <strong>\u00ab \u03bb \u00bb est la longueur d&rsquo;onde, \u00ab&nbsp;v \u00bb est la vitesse du son, et \u00ab f \u00bb est la fr\u00e9quence.<\/strong><\/p>\n\n\n\n<p>La connaissance des longueurs d&rsquo;onde sonores est essentielle dans des domaines comme celui de l&rsquo;acoustique, l&rsquo;ing\u00e9nierie audio, la musique, la m\u00e9decine (avec l&rsquo;\u00e9chographie).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/11\/jamming-tunes-min.gif\" alt=\"Homme avec un casque qui \u00e9coute de la musique et qui s'ambiance\" class=\"wp-image-267188\" style=\"width:291px;height:252px\" width=\"291\" height=\"252\" \/><figcaption class=\"wp-element-caption\"><em>Quand on \u00e9coute notre musique au bureau, \u00e7a peut donner \u00e7a\u2026<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"longueurs-dondes-liees-a-la-temperature-loi-de-wien\">Longueurs d&rsquo;ondes li\u00e9es \u00e0 la temp\u00e9rature : loi de Wien<\/h3>\n\n\n\n<p>La loi de Wien \u00e9tablit une <strong>relation fondamentale entre la temp\u00e9rature d&rsquo;un objet chauff\u00e9 et la longueur d&rsquo;onde<\/strong> \u00e0 laquelle il \u00e9met le maximum de son rayonnement thermique. Elle est essentielle pour comprendre le rayonnement \u00e9lectromagn\u00e9tique \u00e9mis par des objets chauff\u00e9s, y compris les \u00e9toiles. \u2728<\/p>\n\n\n\n<p>Elle s&rsquo;exprime par une \u00e9quation math\u00e9matique qui relie la longueur d&rsquo;onde de l&rsquo;\u00e9mission maximale <strong>(\u03bb_max) \u00e0 la temp\u00e9rature (T) <\/strong>d&rsquo;un objet noir id\u00e9alis\u00e9, appel\u00e9 \u00ab radiateur parfait \u00bb. Cette \u00e9quation est la suivante :<\/p>\n\n\n\n<p><strong>\ud83d\udc49 \u03bb_max * T = constante de Wien<\/strong><\/p>\n\n\n\n<p>La constante de Wien est une constante physique, environ <strong>\u00e9gale \u00e0 2,898 \u00d7 10^(-3) m\u00b7K<\/strong>, dans le syst\u00e8me international d&rsquo;unit\u00e9s.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Bon \u00e0 savoir <span style=\"font-weight: 400\">\ud83d\udc4d<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400\">Dans la loi de Wien, la temp\u00e9rature s&rsquo;exprime en <strong>Kelvin (K)<\/strong>. C\u2019est cette unit\u00e9 qui permet de mesurer la temp\u00e9rature.\ud83c\udf21\ufe0f<\/span><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p><strong>Voici les principales conclusions que l\u2019on en tire :<\/strong><\/p>\n\n\n\n<p>Lorsque la temp\u00e9rature d&rsquo;un objet augmente, la longueur d&rsquo;onde \u00e0 laquelle il \u00e9met le maximum de son rayonnement thermique diminue. Pour faire simple, <strong>les objets chauds \u00e9mettent un rayonnement avec une longueur d&rsquo;onde plus courte et les objets froids \u00e9mettent un rayonnement avec une longueur d&rsquo;onde plus longue.<\/strong><\/p>\n\n\n\n<p>Elle est largement utilis\u00e9e en <strong>astronomie<\/strong> pour d\u00e9terminer la temp\u00e9rature des \u00e9toiles en fonction de la couleur de leur lumi\u00e8re. Les \u00e9toiles chaudes, comme les \u00e9toiles bleues, ont des temp\u00e9ratures plus \u00e9lev\u00e9es et \u00e9mettent principalement dans le bleu et le violet, tandis que les \u00e9toiles plus froides, comme les \u00e9toiles rouges, \u00e9mettent principalement dans le rouge.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/11\/cqfd-ce-quil-faut-demontrer-min.gif\" alt=\"CQFD\" class=\"wp-image-267189\" style=\"width:256px;height:256px\" width=\"256\" height=\"256\" \/><\/figure>\n<\/div>\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part&amp;rsquo; global #3 = CPG3\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Martin2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Martin<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">23\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jade2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jade<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Bastien2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Bastien<\/p>                          <p class=\"push__teachers-school\">Polytechnique<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Emilie2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Emilie<\/p>                          <p class=\"push__teachers-school\">Sciences Po Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Hugo2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Hugo<\/p>                          <p class=\"push__teachers-school\">Insa Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">16\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Alma2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Alma<\/p>                          <p class=\"push__teachers-school\">ENS Paris-Saclay<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">24\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/David2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">David<\/p>                          <p class=\"push__teachers-school\">EDHEC<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jeanne2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jeanne<\/p>                          <p class=\"push__teachers-school\">Aix-Marseille Universit\u00e9<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Besoin de cours particuliers ? <span role=\"img\" aria-label=\"\u2728\">\u2728<\/span><!-- notionvc: 27874cb7-7cca-4c68-a2e3-ea8000cbb55b --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p><span style=\"color: #48b378;\">4 points<\/span> de plus sur ta <span style=\"color: #48b378;\">moyenne<\/span> avec nos profs Sherpas ! <span role=\"image\" aria-label=\"\ud83d\udcc8\">\ud83d\udcc8<\/span><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        JE PRENDS UN COURS OFFERT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"comment-calculer-une-longueur-donde\">Comment calculer une longueur d\u2019onde<\/h2>\n\n\n\n<p>Apr\u00e8s avoir lu les histoires du p\u00e8re Castor sur les longueurs d\u2019onde, voyons ensemble comment les calculer. \ud83e\udd13<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"la-theorie\">La th\u00e9orie<\/h3>\n\n\n\n<p>Si l\u2019onde a une vitesse de propagation (c) et une p\u00e9riode (T), alors on peut calculer sa longueur comme cela : <strong>\u03bb = c x T<\/strong><\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Bon \u00e0 savoir <span style=\"font-weight: 400\">\ud83d\udc4d<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400\">\u03bb est calcul\u00e9 en <strong>m\u00e8tre (m)<\/strong>, c en <strong>m\u00e8tre par seconde (m.s-1)<\/strong> et <strong>T en seconde (s).<\/strong><\/span><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>Il est aussi possible de calculer la longueur d&rsquo;onde quand on conna\u00eet sa vitesse de propagation c et sa fr\u00e9quence f (eh oui, il y a plusieurs solutions) : <strong>\u03bb = c\/f<\/strong><\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Bon \u00e0 savoir <span style=\"font-weight: 400\">\ud83d\udc4d<\/span><\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400\">f se calcule en <strong>hertz (Hz)<\/strong><\/span><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p><strong>\u26a0\ufe0f IMPORTANT :<\/strong> Pour utiliser ces relations, il faut que la longueur d&rsquo;onde soit proportionnelle \u00e0 la p\u00e9riode et que la longueur d&rsquo;onde soit proportionnelle \u00e0 la fr\u00e9quence.<\/p>\n\n\n<section class=\"relance\">\n        <div >\n                            <a target=\"_blank\" href=\"https:\/\/sherpas.com\/cours\/physique\/online\">\n                    <div class=\"relance__container\"\n                        >\n                        \n                                                        <picture>\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/07\/relance-cours-particulier-6.jpg\" media=\"(min-width: 999px)\">\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/07\/relance-cours-particulier-6.jpg\" media=\"(max-width: 999px)\">\n                                <img decoding=\"async\"\n                                    src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/07\/relance-cours-particulier-6.jpg\"\n                                    alt=\"Personne qui donne des cours particuliers\"\n                                >\n                            <\/picture>\n                                                <div class=\"relance__content\">\n                            \n                                <div class=\"relance__title\"> <p>Nos professeurs de physique t&rsquo;attendent pour des cours particuliers en ligne\u00a0<span style=\"font-weight: 400\">\ud83e\udd13<\/span><\/p>\n<\/div>\n                                                        <button type=\"button\"\n                                    class=\"relance__button btn btn-white\">\n                                Viens prendre ton cours particulier \n                            <\/button>\n                        <\/div>\n                    <\/div>\n                <\/a>\n                    <\/div>\n    <\/section>\n\n    \n\n\n<h3 class=\"wp-block-heading\" id=\"petits-exemples\">Petits exemples :&nbsp;<\/h3>\n\n\n\n<p>1- Une onde sismique (onde m\u00e9canique) a une p\u00e9riode de 5s et une vitesse de propagation de 10 m.s-1. Quelle est sa longueur d\u2019onde ?<\/p>\n\n\n\n<p><strong>\u03bb = c x T\u03bb = 10 x 5\u03bb = 50m<\/strong><\/p>\n\n\n\n<p>2- Une onde sonore a une fr\u00e9quence de 1500 Hz et une vitesse de propagation de 343 m.s-1. Quelle est sa longueur d\u2019onde ?&nbsp;<\/p>\n\n\n\n<p><strong>\u03bb = c\/f \u03bb = 343\/1500 \u03bb = 0,23 m<\/strong><\/p>\n\n\n\n<p>Et voil\u00e0, maintenant tu peux te lancer dans tes propres exercices ! \ud83d\ude42<\/p>\n\n\n\n<p>Quoi ? Tu n\u2019es pas encore pr\u00eat ? Pas de panique, nos professeurs de physique sont l\u00e0 pour toi. <a href=\"https:\/\/sherpas.com\/cours\/physique\" data-type=\"link\" data-id=\"https:\/\/sherpas.com\/professeurs?subject=Physique\">Viens prendre ton cours particulier de physique.<\/a> \ud83d\ude09<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/11\/friends-ross-geller.gif\" alt=\"Ross qui est en posture de professeur dans FRIENDS\" class=\"wp-image-267191\" style=\"width:446px;height:241px\" width=\"446\" height=\"241\" \/><\/figure>\n<\/div>\n\n\n<p>Enfin bref, on esp\u00e8re que cette fiche de cours te servira dans tes \u00e9tudes et nous on se retrouve pour un prochain article, <em>bye bye ! <\/em>\ud83d\udc4b<\/p>\n\n\n<section class=\"manual-post\">\n        <div >\n                            <div class=\"manual-post__title\"><\/div>\n                        <div class=\"row\">\n                                <div class=\"col-12  col-md-4  col-lg-4\">\n                                        <div\n\n   class=\"article-card-vertical  article-card-vertical--3   \">\n\n            <a href=\"https:\/\/sherpas.com\/blog\/cest-quoi-une-force-en-physique\/\">\n            <picture>\n                <img decoding=\"async\" width=\"396\" height=\"264\" src=\"https:\/\/sherpas.com\/content\/uploads\/2021\/10\/force-en-physique-scaled.jpg\" class=\"article-card-vertical__image wp-post-image\" alt=\"force en physique\" ci-src=\"https:\/\/sherpas.com\/content\/uploads\/2021\/10\/force-en-physique-scaled.jpg?q=85\" \/>\n                \n                    \n            <\/picture>\n\n        <\/a>\n     \n  \n    <div class=\"article-card-vertical__content\">\n        <a class=\"article-card-vertical__link\" href=\"https:\/\/sherpas.com\/blog\/cest-quoi-une-force-en-physique\/\">\n            <h3 class=\"article-card-vertical__title\" id=\"cest-quoi-une-force-en-physique\">\n                C&rsquo;est quoi une force en Physique ? \ud83e\udd14&nbsp;\u26be\ufe0f\n            <\/h3>\n                            <div class=\"article-card-vertical__text\">\n                    Dans cet article, nous allons parler des forces. Parce que finalement, c&rsquo;est quoi une force physique ? L&rsquo;action (&#8230;)\n                <\/div>\n                    <\/a>   \n                    <div class=\"article-card-vertical__tags article-card-vertical__tags--hide\">\n                <div class=\"article-card-vertical__tag badge\"><\/div>\n            <\/div>\n            <\/div>\n<\/div>\n                <\/div>\n                                <div class=\"col-12  col-md-4  col-lg-4\">\n                                        <div\n\n   class=\"article-card-vertical  article-card-vertical--3   \">\n\n            <a href=\"https:\/\/sherpas.com\/blog\/travailler-physique-maths-lycee\/\">\n            <picture>\n                <img decoding=\"async\" width=\"396\" height=\"264\" src=\"https:\/\/sherpas.com\/content\/uploads\/2021\/10\/travailler-Pc-maths-e1602348071433.jpg\" class=\"article-card-vertical__image wp-post-image\" alt=\"calcul de primitives exercice corrig\u00e9\" ci-src=\"https:\/\/sherpas.com\/content\/uploads\/2021\/10\/travailler-Pc-maths-e1602348071433.jpg?q=85\" \/>\n                \n                    \n            <\/picture>\n\n        <\/a>\n     \n  \n    <div class=\"article-card-vertical__content\">\n        <a class=\"article-card-vertical__link\" href=\"https:\/\/sherpas.com\/blog\/travailler-physique-maths-lycee\/\">\n            <h3 class=\"article-card-vertical__title\" id=\"comment-travailler-la-physique-chimie-ou-les-mathematiques-au-lycee\">\n                Comment travailler la physique-chimie ou les math\u00e9matiques au lyc\u00e9e ?&nbsp;\ud83d\udcd5\ud83d\udcd7\ud83d\udcd8\n            <\/h3>\n                            <div class=\"article-card-vertical__text\">\n                    Cet article se base sur la physique-chimie mais est compl\u00e8tement transposable aux math\u00e9matiques !&nbsp; &nbsp; A toi qui (&#8230;)\n                <\/div>\n                    <\/a>   \n                    <div class=\"article-card-vertical__tags article-card-vertical__tags--hide\">\n                <div class=\"article-card-vertical__tag badge\"><\/div>\n            <\/div>\n            <\/div>\n<\/div>\n                <\/div>\n                                <div class=\"col-12  col-md-4  col-lg-4\">\n                                        <div\n\n   class=\"article-card-vertical  article-card-vertical--3   \">\n\n            <a href=\"https:\/\/sherpas.com\/blog\/conseils-bac-physique-chimie\/\">\n            <picture>\n                <img decoding=\"async\" width=\"388\" height=\"272\" src=\"https:\/\/sherpas.com\/content\/uploads\/2021\/10\/conseils-physique-chimie.jpg\" class=\"article-card-vertical__image wp-post-image\" alt=\"conseils physique chimie\" ci-src=\"https:\/\/sherpas.com\/content\/uploads\/2021\/10\/conseils-physique-chimie.jpg?q=85\" \/>\n                \n                    \n            <\/picture>\n\n        <\/a>\n     \n  \n    <div class=\"article-card-vertical__content\">\n        <a class=\"article-card-vertical__link\" href=\"https:\/\/sherpas.com\/blog\/conseils-bac-physique-chimie\/\">\n            <h3 class=\"article-card-vertical__title\" id=\"10-conseils-magiques-pour-le-bac-de-physique-chimie\">\n                10 conseils magiques pour le bac de physique-chimie&nbsp;\ud83e\uddd9\u200d\u2640\ufe0f\n            <\/h3>\n                            <div class=\"article-card-vertical__text\">\n                    L&rsquo;\u00e9preuve de physique-chimie se rapproche \u00e0 grands pas et tu es toujours en PLS \u00e0 l&rsquo;id\u00e9e de te (&#8230;)\n                <\/div>\n                    <\/a>   \n                    <div class=\"article-card-vertical__tags article-card-vertical__tags--hide\">\n                <div class=\"article-card-vertical__tag badge\"><\/div>\n            <\/div>\n            <\/div>\n<\/div>\n                <\/div>\n                            <\/div>\n        <\/div>\n    <\/section>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;267175&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;2&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Tu as aim\u00e9 cet article ?&quot;,&quot;legend&quot;:&quot;5\\\/5 - (2 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Tout comprendre sur la longueur d\u2019onde \ud83e\udee8&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (2 votes)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Pour ce nouvel article, Les Sherpas t&#8217;emm\u00e8nent dans le monde de la physique. Dit comme \u00e7a, \u00e7a peut (&#8230;)<\/p>\n","protected":false},"author":358,"featured_media":267204,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"category":[803,812],"tag":[770],"class_list":["post-267175","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-apprendre-matiere","category-physique-chimie-2","tag-fiche-revision"],"acf":[],"_links":{"self":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/267175","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/users\/358"}],"replies":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/comments?post=267175"}],"version-history":[{"count":0,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/267175\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media\/267204"}],"wp:attachment":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media?parent=267175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/category?post=267175"},{"taxonomy":"tag","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/tag?post=267175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}