{"id":13,"date":"2021-07-03T11:40:59","date_gmt":"2021-07-03T11:40:59","guid":{"rendered":"https:\/\/www.wikitechy.com\/interview-questions\/?p=13"},"modified":"2021-09-15T07:09:45","modified_gmt":"2021-09-15T07:09:45","slug":"why-na-lamp-is-used-in-a-polarimeter","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/interview-questions\/chemistry-interview-questions\/why-na-lamp-is-used-in-a-polarimeter\/","title":{"rendered":"Why Na lamp is used in a polarimeter ?"},"content":{"rendered":"\r\n<h2 id=\"why-na-lamp-is-used-in-a-polarimeter\" class=\"wp-block-heading\" style=\"text-align: justify;\">Why Na lamp is used in a polarimeter ?<\/h2>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\" style=\"text-align: justify;\">\r\n<li>Sodium (Na) Lamp is used in a polarimeter because it gives monochromatic light and also gives high-energy output. High sensitivity and S\/N ratio.<\/li>\r\n<li>Line spectrum i.e. gives monochromatic light of 589nm.<\/li>\r\n<li>A polarimeter is a scientific instrument used to measure the angle of rotation caused by passing polarized light through an optically active substance.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\" style=\"text-align: justify;\"><\/figure>\r\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-medium\" src=\"https:\/\/cdn.wikitechy.com\/interview-questions\/Chemistry\/why-na-lamp-is-used-in-a-polarimeter.png\" alt=\"why na lamp is used in polarimeter\" width=\"1356\" height=\"384\" \/><\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Answer : Sodium (Na) Lamp is used in a polarimeter because it gives monochromatic light&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[3,4,9,7,6,11,8,13,12,10,5,15865,15877],"class_list":["post-13","post","type-post","status-publish","format-standard","hentry","category-chemistry-interview-questions","tag-apollo-paints-interview-questions","tag-gem-paints-interview-questions","tag-how-to-use-a-polarimeter","tag-polarimeter-experiment-theory","tag-polarimeter-experiment-viva-questions","tag-polarimeter-experiment-viva-questions-with-answers","tag-polarimeter-interview-questions","tag-polarimeter-viva-questions-and-answers","tag-specific-rotation-of-sugar-solution-by-polarimeter-viva-questions","tag-why-sodium-lamp-is-used-as-source-of-polarimeter","tag-why-sodium-lamp-is-used-in-polarimeter","tag-zcl-chemicals-interview-question-and-answers","tag-zydus-cadila-interview-questions-and-answers"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why Na lamp is used in a polarimeter ? 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