{"id":1039,"date":"2023-06-20T11:59:51","date_gmt":"2023-06-20T06:29:51","guid":{"rendered":"https:\/\/lotusarise.com\/qna\/?p=1039"},"modified":"2024-04-03T07:11:37","modified_gmt":"2024-04-03T01:41:37","slug":"q-the-terms-event-horizon-singularity-string-theory-and-standard-model-are-sometimes-seen-in-the-news-in-the-context-of","status":"publish","type":"post","link":"https:\/\/lotusarise.com\/qna\/upsc\/q-the-terms-event-horizon-singularity-string-theory-and-standard-model-are-sometimes-seen-in-the-news-in-the-context-of","title":{"rendered":"Q. The terms \u2018Event Horizon\u2019, \u2018Singularity\u2019, \u2018String Theory\u2019 and \u2018Standard Model\u2019 are sometimes seen in the news in the context of"},"content":{"rendered":"\n<ul class=\"mcq wp-block-list\">\n<li>Observation and understanding of the Universe<\/li>\n\n\n\n<li>Study of the solar and the lunar eclipses<\/li>\n\n\n\n<li>Placing satellites in the orbit of the Earth<\/li>\n\n\n\n<li>Origin and evolution of living organisms on the Earth<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Answer: (a) Observation and understanding of the Universe<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Notes:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The&nbsp;<strong>standard model&nbsp;<\/strong>of particle&nbsp;physics&nbsp;is a mathematical model that describes&nbsp;<strong>electromagnetism<\/strong>, the strong and weak nuclear forces, and the Higgs mechanism.<\/li>\n\n\n\n<li><strong>String theory<\/strong>&nbsp;is used in the context of quantum physics that is used to understand&nbsp;<strong>quantum phenomena<\/strong>.<\/li>\n\n\n\n<li>The basic structure of a&nbsp;<strong>black hole<\/strong>&nbsp;consists of a&nbsp;<strong>singularity<\/strong>&nbsp;hidden by an&nbsp;event horizon.<\/li>\n\n\n\n<li>Within the&nbsp;<strong>event horizon<\/strong>, the&nbsp;<strong>escape velocity exceeds the velocity&nbsp;of the light&nbsp;and an object is trapped forever.<\/strong><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lotusarise.com\/wp-content\/uploads\/2023\/06\/Blackhole-1024x725.jpeg\" alt=\"black hole\" class=\"wp-image-40765\" title=\"\"><\/figure>\n\n\n\n<h6 class=\"wp-block-heading\">String Theory<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>String Theory is a theoretical framework in which the&nbsp;<strong>point-like particles of particle physics are replaced by one-dimensional objects called strings.<\/strong><\/li>\n\n\n\n<li>String theory describes how these&nbsp;<strong>strings propagate through space and interact with each other.<\/strong><\/li>\n\n\n\n<li>On distance scales larger than the string scale, a string looks just like an ordinary particle, with its mass, charge, and other properties determined by the vibrational state of the string.<\/li>\n\n\n\n<li><strong>In string theory, one of the many vibrational states of the string corresponds to the graviton<\/strong>, a quantum mechanical particle that carries the gravitational force. Thus, string theory is a theory of quantum gravity.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"String Theory Explained \u2013 What is The True Nature of Reality?\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/Da-2h2B4faU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-_1b6016-8a .kt-block-spacer{height:40px;}.wp-block-kadence-spacer.kt-block-spacer-_1b6016-8a .kt-divider{border-top-width:2px;border-top-color:#eee;width:100%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-_1b6016-8a\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Answer: (a) Observation and understanding of the Universe Notes: String Theory<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1,3],"tags":[37],"years":[56],"class_list":["post-1039","post","type-post","status-publish","format-standard","hentry","category-upsc","category-prelims","tag-geography","years-56"],"acf":[],"taxonomy_info":{"category":[{"value":1,"label":"UPSC"},{"value":3,"label":"Prelims"}],"post_tag":[{"value":37,"label":"Geography"}],"years":[{"value":56,"label":"2017"}]},"featured_image_src_large":false,"author_info":{"display_name":"LotusArise","author_link":"https:\/\/lotusarise.com\/qna\/author\/team-lotusarise"},"comment_info":0,"category_info":[{"term_id":1,"name":"UPSC","slug":"upsc","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":1269,"filter":"raw","cat_ID":1,"category_count":1269,"category_description":"","cat_name":"UPSC","category_nicename":"upsc","category_parent":0},{"term_id":3,"name":"Prelims","slug":"prelims","term_group":0,"term_taxonomy_id":3,"taxonomy":"category","description":"","parent":1,"count":1251,"filter":"raw","cat_ID":3,"category_count":1251,"category_description":"","cat_name":"Prelims","category_nicename":"prelims","category_parent":1}],"tag_info":[{"term_id":37,"name":"Geography","slug":"geography","term_group":0,"term_taxonomy_id":37,"taxonomy":"post_tag","description":"","parent":0,"count":167,"filter":"raw"}],"_links":{"self":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1039","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/comments?post=1039"}],"version-history":[{"count":0,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1039\/revisions"}],"wp:attachment":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/media?parent=1039"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/categories?post=1039"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/tags?post=1039"},{"taxonomy":"years","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/years?post=1039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}