{"id":1040,"date":"2022-01-12T09:45:45","date_gmt":"2022-01-12T08:45:45","guid":{"rendered":"https:\/\/mxth.dk\/?page_id=1040"},"modified":"2023-04-13T22:35:19","modified_gmt":"2023-04-13T20:35:19","slug":"emneopgave-05","status":"publish","type":"page","link":"https:\/\/mxth.dk\/?page_id=1040","title":{"rendered":"EMNEOPGAVE 05"},"content":{"rendered":"\n
<\/span>
<\/div>
\n

B\u00f8lger<\/p>\n\n\n\n

og<\/p>\n\n\n\n

lys<\/p>\n<\/div><\/div>\n\n\n\n

Af ajizai – http:\/\/www.docstoc.com\/<\/a>, Public Domain, https:\/\/commons.wikimedia.org<\/a><\/p>\n\n\n\n

To lasere udsender lysstr\u00e5ler med forskellige farver lys. Lyset fra de to lasere har frekvenserne<\/p>\n\n\n\n

\"f_1=4,80\cdot Hz og \"f_2=6,34\cdot Hz<\/p>\n\n\n

    \n
  1. Bestem b\u00f8lgel\u00e6ngden i vakuum og farven for de to laserstr\u00e5ler<\/li>\n<\/ol>\n\n\n

    Lyset fra laserne sendes vinkelret ind p\u00e5 et optisk gitter med 600 linjer pr. mm.<\/p>\n\n\n

      \n
    1. Beregn afb\u00f8jningsvinklen for f\u00f8rste orden for de to str\u00e5ler.<\/li>\n\n\n\n
    2. Hvor mange ordner vil hver af dem henholdsvis have?<\/li>\n<\/ol>\n\n\n

      Lyset fra den ene af laserne sendes nu igennem en tyndv\u00e6gget glasbeholder fyldt med olie som vist p\u00e5 figur 1.<\/p>\n\n\n\n

      \"\"
      Figur 1: billede af en glasbeholder fyldt med olie hvor igennem en laserstr\u00e5le sendes<\/em><\/figcaption><\/figure>\n\n\n\n

      Olien har et brydningsindeks p\u00e5 1,53 og figur 2 viser laserstr\u00e5lens vej gennem beholderen, set oppe fra.<\/p>\n\n\n\n

      \"\"
      Figur 2: skitse af str\u00e5legangen gennem glasbeholderen set oppefra.<\/em><\/figcaption><\/figure>\n\n\n\n

      Laserstr\u00e5len kommer ind i beholderen i punkt A gennem midten af den f\u00f8rste endeflade, forts\u00e6tter til punkt B midt p\u00e5 beholderens langside, reflekteres, og forts\u00e6tter ud af beholderen gennem punktet C midt p\u00e5 den anden endeflade.<\/p>\n\n\n

        \n
      • Bestem indfladsvinklen i punkt A, n\u00e5r brydningsvinklen er \"18,1^\circ\".<\/li>\n\n\n\n
      • Unders\u00f8g, om der er totalreflektion i punkt B. <\/li>\n\n\n\n
      • Hvis ikke, med hvilken vinkel skal laserstr\u00e5len s\u00e5 sendes ind i beholdern med for at der er totalreflektion i punkt B?<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

        Af ajizai – http:\/\/www.docstoc.com\/, Public Domain, https:\/\/commons.wikimedia.org To lasere udsender lysstr\u00e5ler med forskellige farver lys. Lyset fra de to lasere har frekvenserne Hz og Hz Lyset fra laserne sendes vinkelret ind p\u00e5 et optisk gitter med 600 linjer pr. mm. Lyset fra den ene af laserne sendes nu igennem en tyndv\u00e6gget glasbeholder fyldt med olie […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ub_ctt_via":"","editor_plus_copied_stylings":"{}","footnotes":""},"categories":[2,4],"tags":[],"class_list":["post-1040","page","type-page","status-publish","hentry","category-fysik","category-opgave"],"featured_image_src":null,"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/pages\/1040","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1040"}],"version-history":[{"count":6,"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/pages\/1040\/revisions"}],"predecessor-version":[{"id":2409,"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/pages\/1040\/revisions\/2409"}],"wp:attachment":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1040"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1040"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1040"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}