{"id":85532,"date":"2025-06-01T03:20:00","date_gmt":"2025-06-01T03:20:00","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85532"},"modified":"2025-06-01T03:20:00","modified_gmt":"2025-06-01T03:20:00","slug":"which-of-the-following-statements-regarding-insolation-is-are-correct","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-insolation-is-are-correct\/","title":{"rendered":"Which of the following statements regarding insolation is\/are correct?"},"content":{"rendered":"<p>Which of the following statements regarding insolation is\/are correct?<\/p>\n<ul>\n<li>1. Insolation is predominantly short-wave radiation, with wavelengths in the range of 0.39 micrometre to 0.76 micrometre.<\/li>\n<li>2. Insolation is evenly distributed across the Earth because of the Earth&#8217;s curved surface.<\/li>\n<\/ul>\n<p>Select the correct answer using the code given below.<\/p>\n<p>[amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;2 only&#8221; option3=&#8221;Both 1 and 2&#8243; option4=&#8221;Neither 1 nor 2&#8243; correct=&#8221;option1&#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; 2024<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-cds-1-2024.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-cds-1-2024\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nStatement 1 is correct regarding insolation. Statement 2 is incorrect.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nInsolation (incoming solar radiation) is predominantly in the form of short-wave radiation, primarily visible light. However, its distribution across the Earth&#8217;s surface is highly uneven due to factors like the Earth&#8217;s curvature, axial tilt, rotation, and atmospheric conditions.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\n1. Solar radiation covers a spectrum from ultraviolet to infrared. The visible light portion (approximately 0.39 to 0.76 micrometre) constitutes the peak intensity and a large proportion of the total solar energy, hence it is considered predominantly short-wave radiation.<br \/>\n2. The Earth&#8217;s curved surface means that the angle at which solar rays strike the surface varies with latitude. Rays hit more directly (perpendicularly) near the equator and more obliquely near the poles, spreading the energy over a larger area and thus reducing the intensity per unit area at higher latitudes. This, along with atmospheric effects and albedo differences, leads to significant variations in insolation received across the globe, making the distribution uneven.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which of the following statements regarding insolation is\/are correct? 1. Insolation is predominantly short-wave radiation, with wavelengths in the range of 0.39 micrometre to 0.76 micrometre. 2. Insolation is evenly distributed across the Earth because of the Earth&#8217;s curved surface. Select the correct answer using the code given below. [amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;2 only&#8221; option3=&#8221;Both &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which of the following statements regarding insolation is\/are correct?\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-insolation-is-are-correct\/#more-85532\">Detailed Solution<span class=\"screen-reader-text\">Which of the following statements regarding insolation is\/are correct?<\/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":[1103,1365,1106],"class_list":["post-85532","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1103","tag-the-insolation","tag-world-and-physical-geography","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>Which of the following statements regarding insolation is\/are correct?<\/title>\n<meta name=\"description\" content=\"Statement 1 is correct regarding insolation. Statement 2 is incorrect. Insolation (incoming solar radiation) is predominantly in the form of short-wave radiation, primarily visible light. However, its distribution across the Earth&#039;s surface is highly uneven due to factors like the Earth&#039;s curvature, axial tilt, rotation, and atmospheric conditions.\" \/>\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\/which-of-the-following-statements-regarding-insolation-is-are-correct\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which of the following statements regarding insolation is\/are correct?\" \/>\n<meta property=\"og:description\" content=\"Statement 1 is correct regarding insolation. Statement 2 is incorrect. Insolation (incoming solar radiation) is predominantly in the form of short-wave radiation, primarily visible light. However, its distribution across the Earth&#039;s surface is highly uneven due to factors like the Earth&#039;s curvature, axial tilt, rotation, and atmospheric conditions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-insolation-is-are-correct\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:20:00+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":"Which of the following statements regarding insolation is\/are correct?","description":"Statement 1 is correct regarding insolation. Statement 2 is incorrect. Insolation (incoming solar radiation) is predominantly in the form of short-wave radiation, primarily visible light. However, its distribution across the Earth's surface is highly uneven due to factors like the Earth's curvature, axial tilt, rotation, and atmospheric conditions.","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\/which-of-the-following-statements-regarding-insolation-is-are-correct\/","og_locale":"en_US","og_type":"article","og_title":"Which of the following statements regarding insolation is\/are correct?","og_description":"Statement 1 is correct regarding insolation. Statement 2 is incorrect. Insolation (incoming solar radiation) is predominantly in the form of short-wave radiation, primarily visible light. However, its distribution across the Earth's surface is highly uneven due to factors like the Earth's curvature, axial tilt, rotation, and atmospheric conditions.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-insolation-is-are-correct\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T03:20:00+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\/which-of-the-following-statements-regarding-insolation-is-are-correct\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-insolation-is-are-correct\/","name":"Which of the following statements regarding insolation is\/are correct?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T03:20:00+00:00","dateModified":"2025-06-01T03:20:00+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Statement 1 is correct regarding insolation. Statement 2 is incorrect. Insolation (incoming solar radiation) is predominantly in the form of short-wave radiation, primarily visible light. 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