{"id":91587,"date":"2025-06-01T11:00:31","date_gmt":"2025-06-01T11:00:31","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91587"},"modified":"2025-06-01T11:00:31","modified_gmt":"2025-06-01T11:00:31","slug":"consider-the-following-phenomena-1-light-is-affected-by-gravity","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/","title":{"rendered":"Consider the following phenomena :\n  1. Light is affected by gravity."},"content":{"rendered":"<p>Consider the following phenomena :<\/p>\n<ul>\n<li>1. Light is affected by gravity.<\/li>\n<li>2. The Universe is constantly expanding.<\/li>\n<li>3. Matter warps its surrounding space-time.<\/li>\n<\/ul>\n<p>Which of the above is\/are the prediction\/predictions of Albert Einstein&#8217;s General Theory of Relativity, often discussed in media ?<\/p>\n<p>[amp_mcq option1=&#8221;1 and 2 only&#8221; option2=&#8221;3 only&#8221; option3=&#8221;1 and 3 only&#8221; option4=&#8221;1, 2 and 3&#8243; 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 IAS &#8211; 2018<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-ias-2018.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-ias-2018\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nAlbert Einstein&#8217;s General Theory of Relativity describes gravity not as a force, but as a consequence of the curvature of spacetime caused by mass and energy. The theory makes several key predictions about the universe and gravity.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nStatement 1 is correct. A prediction of General Relativity is that light is affected by gravity. Massive objects curve spacetime, and light follows this curvature. This phenomenon, known as gravitational lensing or the bending of light by gravity, was famously confirmed during a solar eclipse in 1919.<br \/>\nStatement 2 is correct. While Einstein initially favored a static universe, his field equations in General Relativity allow for dynamic solutions, including an expanding or contracting universe. The observation of the redshift of distant galaxies by Edwin Hubble in the 1920s provided strong evidence for an expanding universe, a phenomenon that is well-described by cosmological models based on General Relativity (like the Friedmann equations). Thus, the theory predicted the possibility of a non-static universe, which aligns with the observed expansion.<br \/>\nStatement 3 is correct. This is the fundamental principle of General Relativity: mass and energy warp the fabric of spacetime around them, and this warping is what we perceive as gravity.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nAll three statements describe predictions or fundamental aspects of Albert Einstein&#8217;s General Theory of Relativity that are often discussed in media and scientific discourse. Other predictions include gravitational time dilation, gravitational redshift, the precession of planetary orbits (like Mercury&#8217;s perihelion), and gravitational waves.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Consider the following phenomena : 1. Light is affected by gravity. 2. The Universe is constantly expanding. 3. Matter warps its surrounding space-time. Which of the above is\/are the prediction\/predictions of Albert Einstein&#8217;s General Theory of Relativity, often discussed in media ? [amp_mcq option1=&#8221;1 and 2 only&#8221; option2=&#8221;3 only&#8221; option3=&#8221;1 and 3 only&#8221; option4=&#8221;1, 2 &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Consider the following phenomena :\n  1. Light is affected by gravity.\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/#more-91587\">Detailed Solution<span class=\"screen-reader-text\">Consider the following phenomena :<br \/>\n  1. Light is affected by gravity.<\/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":[1092],"tags":[1114,1128,1435],"class_list":["post-91587","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1114","tag-physics","tag-space","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>Consider the following phenomena :  1. Light is affected by gravity.<\/title>\n<meta name=\"description\" content=\"Albert Einstein&#039;s General Theory of Relativity describes gravity not as a force, but as a consequence of the curvature of spacetime caused by mass and energy. The theory makes several key predictions about the universe and gravity. Statement 1 is correct. A prediction of General Relativity is that light is affected by gravity. Massive objects curve spacetime, and light follows this curvature. This phenomenon, known as gravitational lensing or the bending of light by gravity, was famously confirmed during a solar eclipse in 1919. Statement 2 is correct. While Einstein initially favored a static universe, his field equations in General Relativity allow for dynamic solutions, including an expanding or contracting universe. The observation of the redshift of distant galaxies by Edwin Hubble in the 1920s provided strong evidence for an expanding universe, a phenomenon that is well-described by cosmological models based on General Relativity (like the Friedmann equations). Thus, the theory predicted the possibility of a non-static universe, which aligns with the observed expansion. Statement 3 is correct. This is the fundamental principle of General Relativity: mass and energy warp the fabric of spacetime around them, and this warping is what we perceive as gravity.\" \/>\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\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Consider the following phenomena :  1. Light is affected by gravity.\" \/>\n<meta property=\"og:description\" content=\"Albert Einstein&#039;s General Theory of Relativity describes gravity not as a force, but as a consequence of the curvature of spacetime caused by mass and energy. The theory makes several key predictions about the universe and gravity. Statement 1 is correct. A prediction of General Relativity is that light is affected by gravity. Massive objects curve spacetime, and light follows this curvature. This phenomenon, known as gravitational lensing or the bending of light by gravity, was famously confirmed during a solar eclipse in 1919. Statement 2 is correct. While Einstein initially favored a static universe, his field equations in General Relativity allow for dynamic solutions, including an expanding or contracting universe. The observation of the redshift of distant galaxies by Edwin Hubble in the 1920s provided strong evidence for an expanding universe, a phenomenon that is well-described by cosmological models based on General Relativity (like the Friedmann equations). Thus, the theory predicted the possibility of a non-static universe, which aligns with the observed expansion. Statement 3 is correct. This is the fundamental principle of General Relativity: mass and energy warp the fabric of spacetime around them, and this warping is what we perceive as gravity.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T11:00:31+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":"Consider the following phenomena :  1. Light is affected by gravity.","description":"Albert Einstein's General Theory of Relativity describes gravity not as a force, but as a consequence of the curvature of spacetime caused by mass and energy. The theory makes several key predictions about the universe and gravity. Statement 1 is correct. A prediction of General Relativity is that light is affected by gravity. Massive objects curve spacetime, and light follows this curvature. This phenomenon, known as gravitational lensing or the bending of light by gravity, was famously confirmed during a solar eclipse in 1919. Statement 2 is correct. While Einstein initially favored a static universe, his field equations in General Relativity allow for dynamic solutions, including an expanding or contracting universe. The observation of the redshift of distant galaxies by Edwin Hubble in the 1920s provided strong evidence for an expanding universe, a phenomenon that is well-described by cosmological models based on General Relativity (like the Friedmann equations). Thus, the theory predicted the possibility of a non-static universe, which aligns with the observed expansion. Statement 3 is correct. This is the fundamental principle of General Relativity: mass and energy warp the fabric of spacetime around them, and this warping is what we perceive as gravity.","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\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/","og_locale":"en_US","og_type":"article","og_title":"Consider the following phenomena :  1. Light is affected by gravity.","og_description":"Albert Einstein's General Theory of Relativity describes gravity not as a force, but as a consequence of the curvature of spacetime caused by mass and energy. The theory makes several key predictions about the universe and gravity. Statement 1 is correct. A prediction of General Relativity is that light is affected by gravity. Massive objects curve spacetime, and light follows this curvature. This phenomenon, known as gravitational lensing or the bending of light by gravity, was famously confirmed during a solar eclipse in 1919. Statement 2 is correct. While Einstein initially favored a static universe, his field equations in General Relativity allow for dynamic solutions, including an expanding or contracting universe. The observation of the redshift of distant galaxies by Edwin Hubble in the 1920s provided strong evidence for an expanding universe, a phenomenon that is well-described by cosmological models based on General Relativity (like the Friedmann equations). Thus, the theory predicted the possibility of a non-static universe, which aligns with the observed expansion. Statement 3 is correct. This is the fundamental principle of General Relativity: mass and energy warp the fabric of spacetime around them, and this warping is what we perceive as gravity.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T11:00:31+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\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/","url":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/","name":"Consider the following phenomena : 1. Light is affected by gravity.","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T11:00:31+00:00","dateModified":"2025-06-01T11:00:31+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Albert Einstein's General Theory of Relativity describes gravity not as a force, but as a consequence of the curvature of spacetime caused by mass and energy. The theory makes several key predictions about the universe and gravity. Statement 1 is correct. A prediction of General Relativity is that light is affected by gravity. Massive objects curve spacetime, and light follows this curvature. This phenomenon, known as gravitational lensing or the bending of light by gravity, was famously confirmed during a solar eclipse in 1919. Statement 2 is correct. While Einstein initially favored a static universe, his field equations in General Relativity allow for dynamic solutions, including an expanding or contracting universe. The observation of the redshift of distant galaxies by Edwin Hubble in the 1920s provided strong evidence for an expanding universe, a phenomenon that is well-described by cosmological models based on General Relativity (like the Friedmann equations). Thus, the theory predicted the possibility of a non-static universe, which aligns with the observed expansion. Statement 3 is correct. This is the fundamental principle of General Relativity: mass and energy warp the fabric of spacetime around them, and this warping is what we perceive as gravity.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-phenomena-1-light-is-affected-by-gravity\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC IAS","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-ias\/"},{"@type":"ListItem","position":3,"name":"Consider the following phenomena : 1. 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