{"id":88918,"date":"2025-06-01T07:24:49","date_gmt":"2025-06-01T07:24:49","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88918"},"modified":"2025-06-01T07:24:49","modified_gmt":"2025-06-01T07:24:49","slug":"which-one-of-the-following-metals-is-most-commonly-used-for-making-fil","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-metals-is-most-commonly-used-for-making-fil\/","title":{"rendered":"Which one of the following metals is most commonly used for making fil"},"content":{"rendered":"

Which one of the following metals is most commonly used for making filament of incandescent electric bulbs?<\/p>\n

[amp_mcq option1=”Aluminium” option2=”Silver” option3=”Copper” option4=”Tungsten” correct=”option4″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-2 – 2022<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nTungsten is the metal most commonly used for making the filament of incandescent electric bulbs.
\n<\/section>\n
\n– The filament in an incandescent bulb needs to glow white-hot (reach a very high temperature) to produce light.
\n– This requires a material with a very high melting point that can withstand such extreme temperatures without melting or vaporizing quickly.
\n– Tungsten (chemical symbol W) has the highest melting point of all known metals (3422\u00b0C or 6192\u00b0F).
\n– It also has high tensile strength, even at high temperatures, and relatively low vapor pressure, reducing evaporation of the filament.
\n<\/section>\n
\nEarly incandescent bulbs used carbon filaments, but tungsten proved to be significantly more efficient and durable. The bulb is often filled with inert gases like argon or nitrogen to reduce tungsten evaporation and prolong the filament’s life.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following metals is most commonly used for making filament of incandescent electric bulbs? [amp_mcq option1=”Aluminium” option2=”Silver” option3=”Copper” option4=”Tungsten” correct=”option4″] This question was previously asked in UPSC NDA-2 – 2022 Download PDFAttempt Online Tungsten is the metal most commonly used for making the filament of incandescent electric bulbs. – The filament in … <\/p>\n

Detailed SolutionWhich one of the following metals is most commonly used for making fil<\/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":[1108,1160,1128],"class_list":["post-88918","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1108","tag-physical-properties-of-materials","tag-physics","no-featured-image-padding"],"yoast_head":"\nWhich one of the following metals is most commonly used for making fil<\/title>\n<meta name=\"description\" content=\"Tungsten is the metal most commonly used for making the filament of incandescent electric bulbs. - The filament in an incandescent bulb needs to glow white-hot (reach a very high temperature) to produce light. - This requires a material with a very high melting point that can withstand such extreme temperatures without melting or vaporizing quickly. - Tungsten (chemical symbol W) has the highest melting point of all known metals (3422\u00b0C or 6192\u00b0F). - It also has high tensile strength, even at high temperatures, and relatively low vapor pressure, reducing evaporation of the filament.\" \/>\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-of-the-following-metals-is-most-commonly-used-for-making-fil\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following metals is most commonly used for making fil\" \/>\n<meta property=\"og:description\" content=\"Tungsten is the metal most commonly used for making the filament of incandescent electric bulbs. - The filament in an incandescent bulb needs to glow white-hot (reach a very high temperature) to produce light. - This requires a material with a very high melting point that can withstand such extreme temperatures without melting or vaporizing quickly. - Tungsten (chemical symbol W) has the highest melting point of all known metals (3422\u00b0C or 6192\u00b0F). - It also has high tensile strength, even at high temperatures, and relatively low vapor pressure, reducing evaporation of the filament.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-metals-is-most-commonly-used-for-making-fil\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:24:49+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 of the following metals is most commonly used for making fil","description":"Tungsten is the metal most commonly used for making the filament of incandescent electric bulbs. - 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