{"id":121303,"date":"2022-05-17T12:32:08","date_gmt":"2022-05-17T07:02:08","guid":{"rendered":"https:\/\/www.mapsofindia.com\/my-india\/?p=121303"},"modified":"2022-05-17T12:32:08","modified_gmt":"2022-05-17T07:02:08","slug":"explain-how-does-i-photoelectric-current-and-ii-kinetic-energy-of-the-photoelectrons-emitted-in-a-photocell-vary-if-the-frequency-of-incident-radiation-is-doubled-but-keeping-the-intensity-same","status":"publish","type":"post","link":"https:\/\/www.mapsofindia.com\/my-india\/education\/explain-how-does-i-photoelectric-current-and-ii-kinetic-energy-of-the-photoelectrons-emitted-in-a-photocell-vary-if-the-frequency-of-incident-radiation-is-doubled-but-keeping-the-intensity-same","title":{"rendered":"Explain how does (i) photoelectric current and (ii) kinetic energy of the photoelectrons emitted in a photocell vary if the frequency of incident radiation is doubled, but keeping the intensity same? Show the graphical variation in the above two cases."},"content":{"rendered":"<h2>Explain how does (i) photoelectric current and (ii) kinetic energy of the photoelectrons emitted in a photocell vary if the frequency of incident radiation is doubled, but keeping the intensity same? Show the graphical variation in the above two cases.<\/h2>\n<h3>ANS<\/h3>\n<h3>(i) The increase in the frequency of incident radiation has no effect on<br \/>\nphotoelectric current. This is because of incident photon of 1\/2 increased energy cannot eject more than one electron from the<br \/>\nmetal surface.<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-121304 size-full\" src=\"https:\/\/www.mapsofindia.com\/ci-moi-images\/my-india\/2022\/05\/2-46.png\" alt=\"\" width=\"237\" height=\"206\" srcset=\"https:\/\/www.mapsofindia.com\/ci-moi-images\/my-india\/2022\/05\/2-46.png 237w, https:\/\/www.mapsofindia.com\/ci-moi-images\/my-india\/2022\/05\/2-46-150x130.png 150w\" sizes=\"auto, (max-width: 237px) 100vw, 237px\" \/><\/p>\n<h3>(ii) The kinetic energy of the photoelectron becomes more than the<br \/>\ndouble of its original energy. As the work function of the metal is fixed, so incident photon of higher frequency and hence higher energy will impart more energy to the photoelectrons.<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-121305 size-full\" src=\"https:\/\/www.mapsofindia.com\/ci-moi-images\/my-india\/2022\/05\/3-44.png\" alt=\"\" width=\"208\" height=\"204\" srcset=\"https:\/\/www.mapsofindia.com\/ci-moi-images\/my-india\/2022\/05\/3-44.png 208w, https:\/\/www.mapsofindia.com\/ci-moi-images\/my-india\/2022\/05\/3-44-150x147.png 150w, https:\/\/www.mapsofindia.com\/ci-moi-images\/my-india\/2022\/05\/3-44-24x24.png 24w, https:\/\/www.mapsofindia.com\/ci-moi-images\/my-india\/2022\/05\/3-44-48x48.png 48w\" sizes=\"auto, (max-width: 208px) 100vw, 208px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Explain how does (i) photoelectric current and (ii) kinetic energy of the photoelectrons emitted in a photocell vary if the frequency of incident radiation is doubled, but keeping the intensity same? Show the graphical variation in the above two cases. ANS (i) The increase in the frequency of incident radiation has no effect on photoelectric [&hellip;]<\/p>\n","protected":false},"author":21830,"featured_media":121296,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":{"0":"post-121303","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-education"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/posts\/121303","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/users\/21830"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/comments?post=121303"}],"version-history":[{"count":1,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/posts\/121303\/revisions"}],"predecessor-version":[{"id":121306,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/posts\/121303\/revisions\/121306"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/media\/121296"}],"wp:attachment":[{"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/media?parent=121303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/categories?post=121303"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/tags?post=121303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}