{"id":91134,"date":"2025-06-01T10:47:35","date_gmt":"2025-06-01T10:47:35","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91134"},"modified":"2025-06-01T10:47:35","modified_gmt":"2025-06-01T10:47:35","slug":"the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra\/","title":{"rendered":"The known forces of nature can be divided into four classes, viz., gra"},"content":{"rendered":"

The known forces of nature can be divided into four classes, viz., gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?<\/p>\n

[amp_mcq option1=”Gravity is the strongest of the four” option2=”Electromagnetism acts only on particles with an electric charge” option3=”Weak nuclear force causes radioactivity” option4=”Strong nuclear force holds protons and neutrons inside the nucleus of an atom” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC IAS – 2013<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
The statement that Gravity is the strongest of the four fundamental forces is not correct.<\/section>\n
The four fundamental forces of nature are, in order of decreasing strength: Strong Nuclear Force, Electromagnetic Force, Weak Nuclear Force, and Gravity. Gravity is by far the weakest of the four forces. The Strong Nuclear Force holds the nucleus together, Electromagnetism governs interactions between charges, and the Weak Nuclear Force is involved in radioactive decay.<\/section>\n
Although gravity is the weakest force at the particle level, its effects are cumulative and always attractive. This makes it the dominant force on large astronomical scales (planets, stars, galaxies). The relative strengths of the forces are approximately: Strong Nuclear Force ~ 1, Electromagnetic Force ~ 10\u207b\u00b2, Weak Nuclear Force ~ 10\u207b\u2076, Gravity ~ 10\u207b\u00b3\u2079 (relative to the strong force at typical nuclear scales).<\/section>\n","protected":false},"excerpt":{"rendered":"

The known forces of nature can be divided into four classes, viz., gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct? [amp_mcq option1=”Gravity is the strongest of the four” option2=”Electromagnetism acts only on particles with an electric charge” option3=”Weak nuclear force causes … <\/p>\n

Detailed SolutionThe known forces of nature can be divided into four classes, viz., gra<\/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":[1467,1203,1128],"class_list":["post-91134","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1467","tag-nuclear-physics","tag-physics","no-featured-image-padding"],"yoast_head":"\nThe known forces of nature can be divided into four classes, viz., gra<\/title>\n<meta name=\"description\" content=\"The statement that Gravity is the strongest of the four fundamental forces is not correct. The four fundamental forces of nature are, in order of decreasing strength: Strong Nuclear Force, Electromagnetic Force, Weak Nuclear Force, and Gravity. Gravity is by far the weakest of the four forces. The Strong Nuclear Force holds the nucleus together, Electromagnetism governs interactions between charges, and the Weak Nuclear Force is involved in radioactive decay.\" \/>\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\/the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The known forces of nature can be divided into four classes, viz., gra\" \/>\n<meta property=\"og:description\" content=\"The statement that Gravity is the strongest of the four fundamental forces is not correct. The four fundamental forces of nature are, in order of decreasing strength: Strong Nuclear Force, Electromagnetic Force, Weak Nuclear Force, and Gravity. Gravity is by far the weakest of the four forces. The Strong Nuclear Force holds the nucleus together, Electromagnetism governs interactions between charges, and the Weak Nuclear Force is involved in radioactive decay.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:47:35+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":"The known forces of nature can be divided into four classes, viz., gra","description":"The statement that Gravity is the strongest of the four fundamental forces is not correct. The four fundamental forces of nature are, in order of decreasing strength: Strong Nuclear Force, Electromagnetic Force, Weak Nuclear Force, and Gravity. Gravity is by far the weakest of the four forces. The Strong Nuclear Force holds the nucleus together, Electromagnetism governs interactions between charges, and the Weak Nuclear Force is involved in radioactive decay.","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\/the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra\/","og_locale":"en_US","og_type":"article","og_title":"The known forces of nature can be divided into four classes, viz., gra","og_description":"The statement that Gravity is the strongest of the four fundamental forces is not correct. The four fundamental forces of nature are, in order of decreasing strength: Strong Nuclear Force, Electromagnetic Force, Weak Nuclear Force, and Gravity. Gravity is by far the weakest of the four forces. The Strong Nuclear Force holds the nucleus together, Electromagnetism governs interactions between charges, and the Weak Nuclear Force is involved in radioactive decay.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:47:35+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\/the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra\/","url":"https:\/\/exam.pscnotes.com\/mcq\/the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra\/","name":"The known forces of nature can be divided into four classes, viz., gra","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:47:35+00:00","dateModified":"2025-06-01T10:47:35+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The statement that Gravity is the strongest of the four fundamental forces is not correct. The four fundamental forces of nature are, in order of decreasing strength: Strong Nuclear Force, Electromagnetic Force, Weak Nuclear Force, and Gravity. Gravity is by far the weakest of the four forces. The Strong Nuclear Force holds the nucleus together, Electromagnetism governs interactions between charges, and the Weak Nuclear Force is involved in radioactive decay.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/the-known-forces-of-nature-can-be-divided-into-four-classes-viz-gra\/#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":"The known forces of nature can be divided into four classes, viz., gra"}]},{"@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\/91134","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=91134"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91134\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=91134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=91134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=91134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}