{"id":85709,"date":"2025-06-01T03:25:15","date_gmt":"2025-06-01T03:25:15","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85709"},"modified":"2025-06-01T03:25:15","modified_gmt":"2025-06-01T03:25:15","slug":"which-one-of-the-following-types-of-glasses-is-used-for-making-optical","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-types-of-glasses-is-used-for-making-optical\/","title":{"rendered":"Which one of the following types of glasses is used for making optical"},"content":{"rendered":"

Which one of the following types of glasses is used for making optical instruments?<\/p>\n

[amp_mcq option1=”Pyrex glass” option2=”Soft glass” option3=”Hard glass” option4=”Flint glass” correct=”option4″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-2 – 2017<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct option is D) Flint glass.
\n<\/section>\n
\nFlint glass is a type of optical glass characterized by a high refractive index and relatively high dispersion. It is often used in combination with crown glass (lower refractive index, lower dispersion) to make achromatic lenses that reduce chromatic aberration (the distortion caused by the different wavelengths of light being refracted at slightly different angles). These properties are crucial for the performance of optical instruments like cameras, telescopes, and microscopes.
\n<\/section>\n
\nPyrex glass is a borosilicate glass known for its thermal shock resistance and is used for laboratory glassware and cookware. Soft glass (soda-lime glass) is common glass used for windows and containers. Hard glass generally refers to types like borosilicate glass with high softening points but isn’t a specific category used for optical purposes like flint glass.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following types of glasses is used for making optical instruments? [amp_mcq option1=”Pyrex glass” option2=”Soft glass” option3=”Hard glass” option4=”Flint glass” correct=”option4″] This question was previously asked in UPSC CDS-2 – 2017 Download PDFAttempt Online The correct option is D) Flint glass. Flint glass is a type of optical glass characterized by a … <\/p>\n

Detailed SolutionWhich one of the following types of glasses is used for making optical<\/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":[1088],"tags":[1101,1096,1239],"class_list":["post-85709","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1101","tag-chemistry","tag-inorganic-chemistry","no-featured-image-padding"],"yoast_head":"\nWhich one of the following types of glasses is used for making optical<\/title>\n<meta name=\"description\" content=\"The correct option is D) Flint glass. Flint glass is a type of optical glass characterized by a high refractive index and relatively high dispersion. It is often used in combination with crown glass (lower refractive index, lower dispersion) to make achromatic lenses that reduce chromatic aberration (the distortion caused by the different wavelengths of light being refracted at slightly different angles). These properties are crucial for the performance of optical instruments like cameras, telescopes, and microscopes.\" \/>\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-types-of-glasses-is-used-for-making-optical\/\" \/>\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 types of glasses is used for making optical\" \/>\n<meta property=\"og:description\" content=\"The correct option is D) Flint glass. Flint glass is a type of optical glass characterized by a high refractive index and relatively high dispersion. It is often used in combination with crown glass (lower refractive index, lower dispersion) to make achromatic lenses that reduce chromatic aberration (the distortion caused by the different wavelengths of light being refracted at slightly different angles). These properties are crucial for the performance of optical instruments like cameras, telescopes, and microscopes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-types-of-glasses-is-used-for-making-optical\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:25:15+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 types of glasses is used for making optical","description":"The correct option is D) Flint glass. 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