{"id":92491,"date":"2025-06-01T11:25:47","date_gmt":"2025-06-01T11:25:47","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=92491"},"modified":"2025-06-01T11:25:47","modified_gmt":"2025-06-01T11:25:47","slug":"which-one-among-the-following-statements-is-not-correct-6","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-statements-is-not-correct-6\/","title":{"rendered":"Which one among the following statements is not correct?"},"content":{"rendered":"

Which one among the following statements is not correct?<\/p>\n

[amp_mcq option1=”Johannes Kepler proved that the path of each planet around the Sun is elliptical with the Sun at its focus.” option2=”The first successful attempt to establish the size of the Earth is credited to Eratosthenes.” option3=”The first Greek to profess a Sun-centred or Heliocentric Universe was Sir Isaac Newton.” option4=”The famous astronomical book Almagest was compiled by Ptolemy.” correct=”option3″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC CISF-AC-EXE – 2018<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct option is C) The first Greek to profess a Sun-centred or Heliocentric Universe was Sir Isaac Newton.
\n<\/section>\n
\nStatement A is correct. Johannes Kepler formulated his laws of planetary motion in the early 17th century, including the first law stating that planets orbit the Sun in elliptical paths with the Sun at one focus.
\nStatement B is correct. Eratosthenes of Cyrene, a Greek scholar in the 3rd century BC, is famous for making the first relatively accurate calculation of the Earth’s circumference using geometry and astronomical observations.
\nStatement C is incorrect. The first known Greek astronomer to propose a heliocentric model of the solar system was Aristarchus of Samos in the 3rd century BC, predating Kepler and Newton by over a thousand years. Sir Isaac Newton (1643-1727) was a British physicist and mathematician, not Greek, and his work explained *why* planetary orbits are elliptical (gravity), building upon Kepler’s descriptive laws.
\nStatement D is correct. The Almagest is the 2nd-century AD astronomical treatise by Claudius Ptolemy, which presented a detailed geocentric model of the universe that remained the standard view for centuries.
\n<\/section>\n
\nAristarchus’s heliocentric model was not widely accepted in antiquity, with the geocentric model of Aristotle and later Ptolemy dominating astronomical thought until the Copernican revolution in the 16th century.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one among the following statements is not correct? [amp_mcq option1=”Johannes Kepler proved that the path of each planet around the Sun is elliptical with the Sun at its focus.” option2=”The first successful attempt to establish the size of the Earth is credited to Eratosthenes.” option3=”The first Greek to profess a Sun-centred or Heliocentric Universe … <\/p>\n

Detailed SolutionWhich one among the following statements is not 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":[1089],"tags":[1114,1128,1233],"class_list":["post-92491","post","type-post","status-publish","format-standard","hentry","category-upsc-cisf-ac-exe","tag-1114","tag-physics","tag-scientists-inventions","no-featured-image-padding"],"yoast_head":"\nWhich one among the following statements is not correct?<\/title>\n<meta name=\"description\" content=\"The correct option is C) The first Greek to profess a Sun-centred or Heliocentric Universe was Sir Isaac Newton. Statement A is correct. Johannes Kepler formulated his laws of planetary motion in the early 17th century, including the first law stating that planets orbit the Sun in elliptical paths with the Sun at one focus. Statement B is correct. Eratosthenes of Cyrene, a Greek scholar in the 3rd century BC, is famous for making the first relatively accurate calculation of the Earth's circumference using geometry and astronomical observations. Statement C is incorrect. The first known Greek astronomer to propose a heliocentric model of the solar system was Aristarchus of Samos in the 3rd century BC, predating Kepler and Newton by over a thousand years. Sir Isaac Newton (1643-1727) was a British physicist and mathematician, not Greek, and his work explained *why* planetary orbits are elliptical (gravity), building upon Kepler's descriptive laws. Statement D is correct. The Almagest is the 2nd-century AD astronomical treatise by Claudius Ptolemy, which presented a detailed geocentric model of the universe that remained the standard view for centuries.\" \/>\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-one-among-the-following-statements-is-not-correct-6\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one among the following statements is not correct?\" \/>\n<meta property=\"og:description\" content=\"The correct option is C) The first Greek to profess a Sun-centred or Heliocentric Universe was Sir Isaac Newton. Statement A is correct. Johannes Kepler formulated his laws of planetary motion in the early 17th century, including the first law stating that planets orbit the Sun in elliptical paths with the Sun at one focus. Statement B is correct. Eratosthenes of Cyrene, a Greek scholar in the 3rd century BC, is famous for making the first relatively accurate calculation of the Earth's circumference using geometry and astronomical observations. Statement C is incorrect. The first known Greek astronomer to propose a heliocentric model of the solar system was Aristarchus of Samos in the 3rd century BC, predating Kepler and Newton by over a thousand years. Sir Isaac Newton (1643-1727) was a British physicist and mathematician, not Greek, and his work explained *why* planetary orbits are elliptical (gravity), building upon Kepler's descriptive laws. Statement D is correct. The Almagest is the 2nd-century AD astronomical treatise by Claudius Ptolemy, which presented a detailed geocentric model of the universe that remained the standard view for centuries.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-statements-is-not-correct-6\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T11:25:47+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 one among the following statements is not correct?","description":"The correct option is C) The first Greek to profess a Sun-centred or Heliocentric Universe was Sir Isaac Newton. Statement A is correct. Johannes Kepler formulated his laws of planetary motion in the early 17th century, including the first law stating that planets orbit the Sun in elliptical paths with the Sun at one focus. Statement B is correct. Eratosthenes of Cyrene, a Greek scholar in the 3rd century BC, is famous for making the first relatively accurate calculation of the Earth's circumference using geometry and astronomical observations. Statement C is incorrect. The first known Greek astronomer to propose a heliocentric model of the solar system was Aristarchus of Samos in the 3rd century BC, predating Kepler and Newton by over a thousand years. Sir Isaac Newton (1643-1727) was a British physicist and mathematician, not Greek, and his work explained *why* planetary orbits are elliptical (gravity), building upon Kepler's descriptive laws. Statement D is correct. The Almagest is the 2nd-century AD astronomical treatise by Claudius Ptolemy, which presented a detailed geocentric model of the universe that remained the standard view for centuries.","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-one-among-the-following-statements-is-not-correct-6\/","og_locale":"en_US","og_type":"article","og_title":"Which one among the following statements is not correct?","og_description":"The correct option is C) The first Greek to profess a Sun-centred or Heliocentric Universe was Sir Isaac Newton. Statement A is correct. Johannes Kepler formulated his laws of planetary motion in the early 17th century, including the first law stating that planets orbit the Sun in elliptical paths with the Sun at one focus. Statement B is correct. Eratosthenes of Cyrene, a Greek scholar in the 3rd century BC, is famous for making the first relatively accurate calculation of the Earth's circumference using geometry and astronomical observations. Statement C is incorrect. The first known Greek astronomer to propose a heliocentric model of the solar system was Aristarchus of Samos in the 3rd century BC, predating Kepler and Newton by over a thousand years. Sir Isaac Newton (1643-1727) was a British physicist and mathematician, not Greek, and his work explained *why* planetary orbits are elliptical (gravity), building upon Kepler's descriptive laws. Statement D is correct. The Almagest is the 2nd-century AD astronomical treatise by Claudius Ptolemy, which presented a detailed geocentric model of the universe that remained the standard view for centuries.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-statements-is-not-correct-6\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T11:25:47+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-one-among-the-following-statements-is-not-correct-6\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-statements-is-not-correct-6\/","name":"Which one among the following statements is not correct?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T11:25:47+00:00","dateModified":"2025-06-01T11:25:47+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct option is C) The first Greek to profess a Sun-centred or Heliocentric Universe was Sir Isaac Newton. 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