{"id":84913,"date":"2025-06-01T02:55:33","date_gmt":"2025-06-01T02:55:33","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=84913"},"modified":"2025-06-01T02:55:33","modified_gmt":"2025-06-01T02:55:33","slug":"if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/","title":{"rendered":"If the wavelengths corresponding to ultraviolet, visible and infrared"},"content":{"rendered":"<p>If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as \u03bb<sub>UV<\/sub>, \u03bb<sub>VIS<\/sub> and \u03bb<sub>IR<\/sub> respectively, then which one of the following gives the correct relationship among these wavelengths?<\/p>\n<p>[amp_mcq option1=&#8221;\u03bb<sub>UV<\/sub> < \u03bb<sub>IR<\/sub> < \u03bb<sub>VIS<\/sub>&#8221; option2=&#8221;\u03bb<sub>UV<\/sub> > \u03bb<sub>VIS<\/sub> > \u03bb<sub>IR<\/sub>&#8221; option3=&#8221;\u03bb<sub>UV<\/sub> > \u03bb<sub>IR<\/sub> > \u03bb<sub>VIS<\/sub>&#8221; option4=&#8221;\u03bb<sub>UV<\/sub> < \u03bb<sub>VIS<\/sub> < \u03bb<sub>IR<\/sub>&#8221; correct=&#8221;option4&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC CDS-1 &#8211; 2019<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-cds-1-2019.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-cds-1-2019\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nThe correct option is D.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nThe electromagnetic spectrum arranges different types of radiation by wavelength and frequency. Wavelength increases from gamma rays to radio waves. The order of the given radiations by increasing wavelength is: Ultraviolet (UV), Visible, Infrared (IR). Therefore, the correct relationship is \u03bb<sub>UV<\/sub> < \u03bb<sub>VIS<\/sub> < \u03bb<sub>IR<\/sub>.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nThe approximate wavelength ranges are: UV (10 nm to 400 nm), Visible (400 nm to 700 nm), and IR (700 nm to 1 mm). This confirms the order of wavelengths.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as \u03bbUV, \u03bbVIS and \u03bbIR respectively, then which one of the following gives the correct relationship among these wavelengths? [amp_mcq option1=&#8221;\u03bbUV < \u03bbIR < \u03bbVIS&#8221; option2=&#8221;\u03bbUV > \u03bbVIS > \u03bbIR&#8221; option3=&#8221;\u03bbUV > \u03bbIR > \u03bbVIS&#8221; option4=&#8221;\u03bbUV < \u03bbVIS < \u03bbIR&#8221; correct=&#8221;option4&#8243;] This question ... \n\n<p class=\"read-more-container\"><a title=\"If the wavelengths corresponding to ultraviolet, visible and infrared\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/#more-84913\">Detailed Solution<span class=\"screen-reader-text\">If the wavelengths corresponding to ultraviolet, visible and infrared<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1087],"tags":[1119,1128,1274],"class_list":["post-84913","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1119","tag-physics","tag-wave-motion","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>If the wavelengths corresponding to ultraviolet, visible and infrared<\/title>\n<meta name=\"description\" content=\"The correct option is D. The electromagnetic spectrum arranges different types of radiation by wavelength and frequency. Wavelength increases from gamma rays to radio waves. The order of the given radiations by increasing wavelength is: Ultraviolet (UV), Visible, Infrared (IR). Therefore, the correct relationship is \u03bbUV &lt; \u03bbVIS &lt; \u03bbIR.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"If the wavelengths corresponding to ultraviolet, visible and infrared\" \/>\n<meta property=\"og:description\" content=\"The correct option is D. The electromagnetic spectrum arranges different types of radiation by wavelength and frequency. Wavelength increases from gamma rays to radio waves. The order of the given radiations by increasing wavelength is: Ultraviolet (UV), Visible, Infrared (IR). Therefore, the correct relationship is \u03bbUV &lt; \u03bbVIS &lt; \u03bbIR.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T02:55:33+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"If the wavelengths corresponding to ultraviolet, visible and infrared","description":"The correct option is D. The electromagnetic spectrum arranges different types of radiation by wavelength and frequency. Wavelength increases from gamma rays to radio waves. The order of the given radiations by increasing wavelength is: Ultraviolet (UV), Visible, Infrared (IR). Therefore, the correct relationship is \u03bbUV &lt; \u03bbVIS &lt; \u03bbIR.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/","og_locale":"en_US","og_type":"article","og_title":"If the wavelengths corresponding to ultraviolet, visible and infrared","og_description":"The correct option is D. The electromagnetic spectrum arranges different types of radiation by wavelength and frequency. Wavelength increases from gamma rays to radio waves. The order of the given radiations by increasing wavelength is: Ultraviolet (UV), Visible, Infrared (IR). Therefore, the correct relationship is \u03bbUV &lt; \u03bbVIS &lt; \u03bbIR.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T02:55:33+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/","url":"https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/","name":"If the wavelengths corresponding to ultraviolet, visible and infrared","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T02:55:33+00:00","dateModified":"2025-06-01T02:55:33+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct option is D. The electromagnetic spectrum arranges different types of radiation by wavelength and frequency. Wavelength increases from gamma rays to radio waves. The order of the given radiations by increasing wavelength is: Ultraviolet (UV), Visible, Infrared (IR). Therefore, the correct relationship is \u03bbUV &lt; \u03bbVIS &lt; \u03bbIR.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-wavelengths-corresponding-to-ultraviolet-visible-and-infrared\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CDS-1","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-cds-1\/"},{"@type":"ListItem","position":3,"name":"If the wavelengths corresponding to ultraviolet, visible and infrared"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/84913","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=84913"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/84913\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=84913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=84913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=84913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}