{"id":86995,"date":"2025-06-01T04:25:06","date_gmt":"2025-06-01T04:25:06","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86995"},"modified":"2025-06-01T04:25:06","modified_gmt":"2025-06-01T04:25:06","slug":"which-one-of-the-following-semi-conductors-possesses-the-highest-value","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-semi-conductors-possesses-the-highest-value\/","title":{"rendered":"Which one of the following semi-conductors possesses the highest value"},"content":{"rendered":"

Which one of the following semi-conductors possesses the highest value of band gap Eg?<\/p>\n

[amp_mcq option1=”Si” option2=”Ge” option3=”GaAs” option4=”PbS” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC Geoscientist – 2023<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe band gap (Eg) values for the given semiconductors are approximately:
\nSi (Silicon): ~1.1 eV (indirect band gap)
\nGe (Germanium): ~0.67 eV (indirect band gap)
\nGaAs (Gallium Arsenide): ~1.42 eV (direct band gap)
\nPbS (Lead Sulfide): ~0.37 eV (direct band gap)
\nComparing these values, GaAs has the highest band gap among the options.
\n<\/section>\n
\nThe band gap is the energy difference between the top of the valence band and the bottom of the conduction band. This value is a key characteristic of semiconductor materials.
\n<\/section>\n
\nSemiconductors are classified by their band gap, which can be direct or indirect. A larger band gap generally means the material is less conductive. Materials with larger band gaps (e.g., GaN, SiC) are used in high-power, high-temperature, and high-frequency applications, as well as in blue\/UV light emitters.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following semi-conductors possesses the highest value of band gap Eg? [amp_mcq option1=”Si” option2=”Ge” option3=”GaAs” option4=”PbS” correct=”option3″] This question was previously asked in UPSC Geoscientist – 2023 Download PDFAttempt Online The band gap (Eg) values for the given semiconductors are approximately: Si (Silicon): ~1.1 eV (indirect band gap) Ge (Germanium): ~0.67 eV … <\/p>\n

Detailed SolutionWhich one of the following semi-conductors possesses the highest value<\/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":[1091],"tags":[1105,1200,1128],"class_list":["post-86995","post","type-post","status-publish","format-standard","hentry","category-upsc-geoscientist","tag-1105","tag-conductivity","tag-physics","no-featured-image-padding"],"yoast_head":"\nWhich one of the following semi-conductors possesses the highest value<\/title>\n<meta name=\"description\" content=\"The band gap (Eg) values for the given semiconductors are approximately: Si (Silicon): ~1.1 eV (indirect band gap) Ge (Germanium): ~0.67 eV (indirect band gap) GaAs (Gallium Arsenide): ~1.42 eV (direct band gap) PbS (Lead Sulfide): ~0.37 eV (direct band gap) Comparing these values, GaAs has the highest band gap among the options. The band gap is the energy difference between the top of the valence band and the bottom of the conduction band. This value is a key characteristic of semiconductor materials.\" \/>\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-semi-conductors-possesses-the-highest-value\/\" \/>\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 semi-conductors possesses the highest value\" \/>\n<meta property=\"og:description\" content=\"The band gap (Eg) values for the given semiconductors are approximately: Si (Silicon): ~1.1 eV (indirect band gap) Ge (Germanium): ~0.67 eV (indirect band gap) GaAs (Gallium Arsenide): ~1.42 eV (direct band gap) PbS (Lead Sulfide): ~0.37 eV (direct band gap) Comparing these values, GaAs has the highest band gap among the options. The band gap is the energy difference between the top of the valence band and the bottom of the conduction band. This value is a key characteristic of semiconductor materials.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-semi-conductors-possesses-the-highest-value\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T04:25:06+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 semi-conductors possesses the highest value","description":"The band gap (Eg) values for the given semiconductors are approximately: Si (Silicon): ~1.1 eV (indirect band gap) Ge (Germanium): ~0.67 eV (indirect band gap) GaAs (Gallium Arsenide): ~1.42 eV (direct band gap) PbS (Lead Sulfide): ~0.37 eV (direct band gap) Comparing these values, GaAs has the highest band gap among the options. The band gap is the energy difference between the top of the valence band and the bottom of the conduction band. This value is a key characteristic of semiconductor materials.","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-of-the-following-semi-conductors-possesses-the-highest-value\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following semi-conductors possesses the highest value","og_description":"The band gap (Eg) values for the given semiconductors are approximately: Si (Silicon): ~1.1 eV (indirect band gap) Ge (Germanium): ~0.67 eV (indirect band gap) GaAs (Gallium Arsenide): ~1.42 eV (direct band gap) PbS (Lead Sulfide): ~0.37 eV (direct band gap) Comparing these values, GaAs has the highest band gap among the options. The band gap is the energy difference between the top of the valence band and the bottom of the conduction band. This value is a key characteristic of semiconductor materials.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-semi-conductors-possesses-the-highest-value\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T04:25:06+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-of-the-following-semi-conductors-possesses-the-highest-value\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-semi-conductors-possesses-the-highest-value\/","name":"Which one of the following semi-conductors possesses the highest value","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T04:25:06+00:00","dateModified":"2025-06-01T04:25:06+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The band gap (Eg) values for the given semiconductors are approximately: Si (Silicon): ~1.1 eV (indirect band gap) Ge (Germanium): ~0.67 eV (indirect band gap) GaAs (Gallium Arsenide): ~1.42 eV (direct band gap) PbS (Lead Sulfide): ~0.37 eV (direct band gap) Comparing these values, GaAs has the highest band gap among the options. 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