{"id":87695,"date":"2025-06-01T06:51:25","date_gmt":"2025-06-01T06:51:25","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87695"},"modified":"2025-06-01T06:51:25","modified_gmt":"2025-06-01T06:51:25","slug":"black-hole-is-a","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/black-hole-is-a\/","title":{"rendered":"‘Black hole’ is a"},"content":{"rendered":"

‘Black hole’ is a<\/p>\n

[amp_mcq option1=”huge black star which has zero acceleration due to gravity on its surface” option2=”star which has moderate acceleration due to gravity on its surface” option3=”star which has collapsed into itself and has large acceleration due to gravity on its surface” option4=”star which has collapsed into itself and has zero acceleration due to gravity on its surface” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2019<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct option is C) star which has collapsed into itself and has large acceleration due to gravity on its surface. This describes the nature of a black hole.
\n<\/section>\n
\n– A black hole is not a regular star; it is the result of the gravitational collapse of a very massive star after it exhausts its nuclear fuel.
\n– This collapse compresses the mass into an extremely small volume, resulting in incredibly dense matter.
\n– The gravitational pull becomes so strong that nothing, not even light, can escape from within a certain boundary called the event horizon.
\n– The “surface” (event horizon) of a black hole is characterized by an extremely large acceleration due to gravity (often conceptualized by the escape velocity exceeding the speed of light).
\n– Options A, B, and D are incorrect because a black hole is not a typical star, and it has extremely large, not zero or moderate, acceleration due to gravity at its boundary.
\n<\/section>\n
\nBlack holes are predicted by Einstein’s theory of general relativity. They are regions of spacetime exhibiting such strong gravitational effects that nothing\u2014not even particles and electromagnetic radiation such as light\u2014can escape from inside their event horizon. The point of infinite density at the center of a black hole is called the singularity.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

‘Black hole’ is a [amp_mcq option1=”huge black star which has zero acceleration due to gravity on its surface” option2=”star which has moderate acceleration due to gravity on its surface” option3=”star which has collapsed into itself and has large acceleration due to gravity on its surface” option4=”star which has collapsed into itself and has zero acceleration … <\/p>\n

Detailed Solution‘Black hole’ is a<\/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":[1093],"tags":[1119,1128,1435],"class_list":["post-87695","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1119","tag-physics","tag-space","no-featured-image-padding"],"yoast_head":"\n'Black hole' is a<\/title>\n<meta name=\"description\" content=\"The correct option is C) star which has collapsed into itself and has large acceleration due to gravity on its surface. This describes the nature of a black hole. - A black hole is not a regular star; it is the result of the gravitational collapse of a very massive star after it exhausts its nuclear fuel. - This collapse compresses the mass into an extremely small volume, resulting in incredibly dense matter. - The gravitational pull becomes so strong that nothing, not even light, can escape from within a certain boundary called the event horizon. - The "surface" (event horizon) of a black hole is characterized by an extremely large acceleration due to gravity (often conceptualized by the escape velocity exceeding the speed of light). - Options A, B, and D are incorrect because a black hole is not a typical star, and it has extremely large, not zero or moderate, acceleration due to gravity at its boundary.\" \/>\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\/black-hole-is-a\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"'Black hole' is a\" \/>\n<meta property=\"og:description\" content=\"The correct option is C) star which has collapsed into itself and has large acceleration due to gravity on its surface. This describes the nature of a black hole. - A black hole is not a regular star; it is the result of the gravitational collapse of a very massive star after it exhausts its nuclear fuel. - This collapse compresses the mass into an extremely small volume, resulting in incredibly dense matter. - The gravitational pull becomes so strong that nothing, not even light, can escape from within a certain boundary called the event horizon. - The "surface" (event horizon) of a black hole is characterized by an extremely large acceleration due to gravity (often conceptualized by the escape velocity exceeding the speed of light). - Options A, B, and D are incorrect because a black hole is not a typical star, and it has extremely large, not zero or moderate, acceleration due to gravity at its boundary.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/black-hole-is-a\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:51:25+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":"'Black hole' is a","description":"The correct option is C) star which has collapsed into itself and has large acceleration due to gravity on its surface. 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