{"id":20824,"date":"2020-01-24T18:48:42","date_gmt":"2020-01-24T18:48:42","guid":{"rendered":"https:\/\/www.cpge-brizeux.fr\/wordpress\/?p=20824"},"modified":"2020-01-29T09:52:29","modified_gmt":"2020-01-29T09:52:29","slug":"semaine-17-du-20-01-au-24-01","status":"publish","type":"post","link":"https:\/\/www.cpge-brizeux.fr\/wordpress\/pc\/physique-pc-1920\/semaine-17-du-20-01-au-24-01.html","title":{"rendered":"Semaine 17 : du 20\/01 au 24\/01"},"content":{"rendered":"<div style=\"border: 2px solid; border-radius: 6px; color: #dc143c; padding-top: 1px; padding-bottom: 1px; padding-left: 20px; margin: 1px;\">\n<p><b><big><span style=\"color: #dc143c;\">Programme de colles de la semaine 18 du 27\/01 au 31\/01<br \/>\n<\/span><\/big><\/b><\/p>\n<p><span style=\"color: #000000;\">&#8211; <strong>Optique 3<\/strong> : \u00c9tude de diviseurs du front d&rsquo;onde : les trous d&rsquo;Young et ses g\u00e9n\u00e9ralisations (exercices) \u2192 <a href=\"http:\/\/www.cpge-brizeux.fr\/wordpress\/wp-content\/uploads\/O3_plan.pdf\">O3_plan<\/a><\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; <strong>Optique 4<\/strong> : L&rsquo;interf\u00e9rom\u00e8tre de Michelson (cours et exercices) \u2192 <a style=\"color: #000000;\" href=\"http:\/\/www.cpge-brizeux.fr\/wordpress\/wp-content\/uploads\/O4_plan.pdf\">O4_plan<\/a><\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; <strong>Optique 5<\/strong> : Notions sur la diffraction (cours et exercices) \u2192\u00a0<a style=\"color: #000000;\" href=\"http:\/\/www.cpge-brizeux.fr\/wordpress\/wp-content\/uploads\/O5_plan.pdf\">O5_plan<\/a><\/span><\/p>\n<p><span style=\"color: #000000;\">______<\/span><\/p>\n<p><span style=\"color: #000000;\">A l&rsquo;attention des interrogateurs, suggestions de questions de cours (rq : les capacit\u00e9s de O5 sont essentiellement exp\u00e9rimentales) :<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">O4 &#8211; \u00c9tablir l&rsquo;expression de la diff\u00e9rence de marche pour l&rsquo;interf\u00e9rom\u00e8tre de Michelson en configuration lame d&rsquo;air, \u00e9clair\u00e9 par une source spatialement \u00e9tendue.<\/span><\/li>\n<li><span style=\"color: #000000;\">O4 &#8211; R\u00e9sumer dans un tableau, pour les deux configurations de l&rsquo;interf\u00e9rom\u00e8tre de Michelson en lame d&rsquo;air \/ coin d&rsquo;air : la <em>d\u00e9finition<\/em> de la configuration, la <em>localisation<\/em> des franges, la m\u00e9thode d&rsquo;<em>\u00e9clairage<\/em> et de <em>projection<\/em>, le <em>nom<\/em> et la <em>nature<\/em> des franges.<\/span><\/li>\n<li><span style=\"color: #000000;\">O5 &#8211; D\u00e9finir : le montage de Fraunhofer pour l&rsquo;\u00e9tude d&rsquo;un objet diffractant (une phrase + sch\u00e9ma) ; le plan de Fourier ; la notion de fr\u00e9quence spatiale. Donner la relation entre fr\u00e9quence spatiale de l&rsquo;objet diffractant et l&rsquo;angle de diffraction associ\u00e9. A.N. \u00e9ventuellement<\/span><\/li>\n<li><span style=\"color: #000000;\">O5 &#8211; R\u00e9seau unidimensionnel sinuso\u00efdal dans les conditions de Fraunhofer : d\u00e9crire les observations sur l&rsquo;\u00e9cran. Interpr\u00e9ter qualitativement \u00e0 l&rsquo;aide d&rsquo;un sch\u00e9ma et d&rsquo;une explication sans calcul <span style=\"font-size: 10pt;\"><em>(Ce qui est attendu : la mise en \u00e9vidence de trois ondes planes, l&rsquo;une associ\u00e9e \u00e0 la valeur moyenne (fr\u00e9quence spatiale sigma nulle) et les deux autres \u00e0 la p\u00e9riodicit\u00e9 spatiale a du coefficient de transmission du r\u00e9seau ; les vecteurs d&rsquo;onde de ces ondes faisant des angles avec l&rsquo;axe optique selon la relation g\u00e9n\u00e9rale sin(theta_n)=lambda*sigma_n valable pour un coef de transmission p\u00e9riodique)<\/em><\/span><\/span><\/li>\n<li><span style=\"color: #000000;\">O5 &#8211; Expliquer \u00e0 l&rsquo;aide de sch\u00e9ma(s) le principe du filtrage optique (d\u00e9tramage \/ strioscopie)<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">______<\/span><\/p>\n<p><span style=\"color: #000000;\">A l&rsquo;attention des \u00e9tudiants :<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; pour le chapitre O5, les exercices \u00e0 savoir faire pour cette semaine de colles sont : ex 1, 2, 3, 4 et probl\u00e8me<br \/>\n<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; pour mercredi 22\/01 : O5 ex 5 (\u00e9ventuellement 6) et lire l&rsquo;approche descriptive de l&rsquo;effet Hall (EM1)<br \/>\n<\/span><\/p>\n<\/div>\n<div style=\"border: 2px solid; border-radius: 6px; color: #800080; padding-top: 1px; padding-bottom: 1px; padding-left: 20px; margin: 1px;\">\n<p><span style=\"font-size: 14pt;\"><strong><span style=\"color: #800080;\">Travaux pratiques<\/span><br \/>\n<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">TP Fentes d&rsquo;Young et r\u00e9seaux<br \/>\n<\/span><\/p>\n<\/div>\n<div style=\"border: 2px solid; border-radius: 6px; color: #00008b; padding-top: 1px; padding-bottom: 1px; padding-left: 20px; margin: 1px;\">\n<p><span style=\"font-size: 14pt;\"><strong>Cours<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Optique 5 : Notions sur la diffraction (\u2192 fin)<\/span><\/p>\n<p><span style=\"color: #000000;\">Electromagn\u00e9tisme 1 : Sources du champ magn\u00e9tique (\u2192 III.1)<\/span><\/p>\n<p><span style=\"color: #000000;\">Pour compl\u00e9ter les chapitres :<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; d\u00e9composition d&rsquo;un signal en cr\u00e9neaux en s\u00e9rie de Fourier :<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"Fourier Series Square Wave\" width=\"593\" height=\"334\" src=\"https:\/\/www.youtube.com\/embed\/cUD1gMAl6W4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><span style=\"color: #000000;\">&#8211; Images issues d&rsquo;un montage de strioscopie (avec un miroir parabolique), vid\u00e9os de Derek Muller (Veritasium)<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"How To See Air Currents\" width=\"593\" height=\"334\" src=\"https:\/\/www.youtube.com\/embed\/4tgOyU34D44?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><span style=\"color: #000000;\"><em>Plan(s) du (des) chapitre(s) ; capacit\u00e9s exigibles ; documents de cours :<\/em><\/span><\/p>\n<\/div>\n<div style=\"border: 2px solid; border-radius: 6px; color: #00008b; padding-top: 1px; padding-bottom: 1px; padding-left: 20px; margin: 1px;\">\n<p><span style=\"font-size: 14pt;\"><strong>Travail \u00e0 faire<br \/>\n<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Pour mercredi : O4 ex 6 et 7<br \/>\n<\/span><\/p>\n<p><span style=\"color: #000000;\">Pour jeudi : O4 pb n\u00b02 et O5 ex 1<br \/>\n<\/span><\/p>\n<p><span style=\"color: #000000;\">Pour vendredi : O5 ex 2 et 3<br \/>\n<\/span><\/p>\n<\/div>\n<div style=\"border: 2px solid; border-radius: 6px; color: #2e8b57; padding-top: 1px; padding-bottom: 1px; padding-left: 20px; margin: 1px;\">\n<p><b><big><span style=\"color: #2e8b57;\">Travaux dirig\u00e9s<br \/>\n<\/span><\/big><\/b><\/p>\n<p><span style=\"color: #000000;\">TD O5<br \/>\n<\/span><\/p>\n<p><span style=\"color: #000000;\">Correction<br \/>\n<\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Programme de colles de la semaine 18 du 27\/01 au 31\/01 &#8211; Optique 3 : \u00c9tude de diviseurs du front d&rsquo;onde : les trous d&rsquo;Young et ses g\u00e9n\u00e9ralisations (exercices) \u2192 O3_plan &#8211; Optique 4 : L&rsquo;interf\u00e9rom\u00e8tre de Michelson (cours et&hellip;<\/p>\n<p class=\"more-link-p\"><a class=\"more-link\" href=\"https:\/\/www.cpge-brizeux.fr\/wordpress\/pc\/physique-pc-1920\/semaine-17-du-20-01-au-24-01.html\">Read more &rarr;<\/a><\/p>\n","protected":false},"author":28,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[272],"tags":[],"class_list":["post-20824","post","type-post","status-publish","format-standard","hentry","category-physique-pc-1920"],"_links":{"self":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts\/20824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/comments?post=20824"}],"version-history":[{"count":5,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts\/20824\/revisions"}],"predecessor-version":[{"id":20826,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts\/20824\/revisions\/20826"}],"wp:attachment":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/media?parent=20824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/categories?post=20824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/tags?post=20824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}