{"id":88531,"date":"2025-06-01T07:14:05","date_gmt":"2025-06-01T07:14:05","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88531"},"modified":"2025-06-01T07:14:05","modified_gmt":"2025-06-01T07:14:05","slug":"in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai\/","title":{"rendered":"In which of the following phenomena do heat waves travel along a strai"},"content":{"rendered":"

In which of the following phenomena do heat waves travel along a straight line with the speed of light ?<\/p>\n

[amp_mcq option1=”Thermal conduction” option2=”Thermal convection” option3=”Thermal radiation” option4=”Both, thermal conduction and radiation” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-2 – 2019<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct option is C) Thermal radiation. Heat transfer by radiation involves electromagnetic waves, which travel at the speed of light.
\n<\/section>\n
\nHeat can be transferred by conduction, convection, and radiation. Conduction is the transfer of heat through direct contact via vibrations of particles. Convection is the transfer of heat through the movement of fluids (liquids or gases). Both conduction and convection require a medium and the speed of heat transfer is much slower than the speed of light. Radiation is the transfer of heat through electromagnetic waves, such as infrared radiation. These waves can travel through a vacuum and propagate at the speed of light (approximately 3 x 10\u2078 m\/s in vacuum).
\n<\/section>\n
\nHeat from the Sun reaches the Earth primarily through radiation, traveling across the vacuum of space at the speed of light. Conduction is how a metal spoon gets hot when placed in hot soup. Convection is how water heats up in a pot or how air circulates in a room.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

In which of the following phenomena do heat waves travel along a straight line with the speed of light ? [amp_mcq option1=”Thermal conduction” option2=”Thermal convection” option3=”Thermal radiation” option4=”Both, thermal conduction and radiation” correct=”option3″] This question was previously asked in UPSC NDA-2 – 2019 Download PDFAttempt Online The correct option is C) Thermal radiation. Heat transfer … <\/p>\n

Detailed SolutionIn which of the following phenomena do heat waves travel along a strai<\/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":[1094],"tags":[1119,1130,1128],"class_list":["post-88531","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1119","tag-heat-and-thermodynamics","tag-physics","no-featured-image-padding"],"yoast_head":"\nIn which of the following phenomena do heat waves travel along a strai<\/title>\n<meta name=\"description\" content=\"The correct option is C) Thermal radiation. Heat transfer by radiation involves electromagnetic waves, which travel at the speed of light. Heat can be transferred by conduction, convection, and radiation. Conduction is the transfer of heat through direct contact via vibrations of particles. Convection is the transfer of heat through the movement of fluids (liquids or gases). Both conduction and convection require a medium and the speed of heat transfer is much slower than the speed of light. Radiation is the transfer of heat through electromagnetic waves, such as infrared radiation. These waves can travel through a vacuum and propagate at the speed of light (approximately 3 x 10\u2078 m\/s in vacuum).\" \/>\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\/in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"In which of the following phenomena do heat waves travel along a strai\" \/>\n<meta property=\"og:description\" content=\"The correct option is C) Thermal radiation. Heat transfer by radiation involves electromagnetic waves, which travel at the speed of light. Heat can be transferred by conduction, convection, and radiation. Conduction is the transfer of heat through direct contact via vibrations of particles. Convection is the transfer of heat through the movement of fluids (liquids or gases). Both conduction and convection require a medium and the speed of heat transfer is much slower than the speed of light. Radiation is the transfer of heat through electromagnetic waves, such as infrared radiation. These waves can travel through a vacuum and propagate at the speed of light (approximately 3 x 10\u2078 m\/s in vacuum).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:14:05+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":"In which of the following phenomena do heat waves travel along a strai","description":"The correct option is C) Thermal radiation. Heat transfer by radiation involves electromagnetic waves, which travel at the speed of light. Heat can be transferred by conduction, convection, and radiation. Conduction is the transfer of heat through direct contact via vibrations of particles. Convection is the transfer of heat through the movement of fluids (liquids or gases). Both conduction and convection require a medium and the speed of heat transfer is much slower than the speed of light. Radiation is the transfer of heat through electromagnetic waves, such as infrared radiation. These waves can travel through a vacuum and propagate at the speed of light (approximately 3 x 10\u2078 m\/s in vacuum).","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\/in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai\/","og_locale":"en_US","og_type":"article","og_title":"In which of the following phenomena do heat waves travel along a strai","og_description":"The correct option is C) Thermal radiation. Heat transfer by radiation involves electromagnetic waves, which travel at the speed of light. Heat can be transferred by conduction, convection, and radiation. Conduction is the transfer of heat through direct contact via vibrations of particles. Convection is the transfer of heat through the movement of fluids (liquids or gases). Both conduction and convection require a medium and the speed of heat transfer is much slower than the speed of light. Radiation is the transfer of heat through electromagnetic waves, such as infrared radiation. These waves can travel through a vacuum and propagate at the speed of light (approximately 3 x 10\u2078 m\/s in vacuum).","og_url":"https:\/\/exam.pscnotes.com\/mcq\/in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T07:14:05+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\/in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai\/","url":"https:\/\/exam.pscnotes.com\/mcq\/in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai\/","name":"In which of the following phenomena do heat waves travel along a strai","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T07:14:05+00:00","dateModified":"2025-06-01T07:14:05+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct option is C) Thermal radiation. Heat transfer by radiation involves electromagnetic waves, which travel at the speed of light. Heat can be transferred by conduction, convection, and radiation. Conduction is the transfer of heat through direct contact via vibrations of particles. Convection is the transfer of heat through the movement of fluids (liquids or gases). Both conduction and convection require a medium and the speed of heat transfer is much slower than the speed of light. Radiation is the transfer of heat through electromagnetic waves, such as infrared radiation. These waves can travel through a vacuum and propagate at the speed of light (approximately 3 x 10\u2078 m\/s in vacuum).","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/in-which-of-the-following-phenomena-do-heat-waves-travel-along-a-strai\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC NDA-2","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-nda-2\/"},{"@type":"ListItem","position":3,"name":"In which of the following phenomena do heat waves travel along a strai"}]},{"@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\/88531","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=88531"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/88531\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=88531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=88531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=88531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}