{"id":92794,"date":"2025-06-01T11:32:43","date_gmt":"2025-06-01T11:32:43","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=92794"},"modified":"2025-06-01T11:32:43","modified_gmt":"2025-06-01T11:32:43","slug":"an-object-is-kept-at-infinity-from-the-position-of-a-concave-spherica","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/an-object-is-kept-at-infinity-from-the-position-of-a-concave-spherica\/","title":{"rendered":"An object is kept at infinity from the position of a concave (spherica"},"content":{"rendered":"

An object is kept at infinity from the position of a concave (spherical) mirror. Which one is *not* true about the image of the object?<\/p>\n

[amp_mcq option1=”Position of image is at the focus of the mirror” option2=”Size of image is the same as that of the object” option3=”Image is real” option4=”Image is inverted” correct=”option2″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC CISF-AC-EXE – 2020<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nWhen an object is placed at infinity from a concave spherical mirror, the light rays from the object are considered to be parallel to the principal axis. After reflection from the concave mirror, these parallel rays converge at the principal focus (F) of the mirror. The image formed at the focus is real, inverted (relative to the infinitely distant object), and highly diminished (essentially a point image).
\n<\/section>\n
\nFor an object at infinity from a concave mirror, the image is formed at the focus, is real, inverted, and highly diminished (point-sized).
\n<\/section>\n
\nOption A states the position of the image is at the focus, which is true. Option C states the image is real, which is true for converging rays formed on the same side as the object. Option D states the image is inverted, which is true for real images formed by a concave mirror (even though a point image doesn’t visually appear inverted). Option B states the size of the image is the same as that of the object, which is false; the image is highly diminished. Therefore, the statement that is *not* true is B.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

An object is kept at infinity from the position of a concave (spherical) mirror. Which one is *not* true about the image of the object? [amp_mcq option1=”Position of image is at the focus of the mirror” option2=”Size of image is the same as that of the object” option3=”Image is real” option4=”Image is inverted” correct=”option2″] This … <\/p>\n

Detailed SolutionAn object is kept at infinity from the position of a concave (spherica<\/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":[1089],"tags":[1288,1153,1128],"class_list":["post-92794","post","type-post","status-publish","format-standard","hentry","category-upsc-cisf-ac-exe","tag-1288","tag-optics","tag-physics","no-featured-image-padding"],"yoast_head":"\nAn object is kept at infinity from the position of a concave (spherica<\/title>\n<meta name=\"description\" content=\"When an object is placed at infinity from a concave spherical mirror, the light rays from the object are considered to be parallel to the principal axis. After reflection from the concave mirror, these parallel rays converge at the principal focus (F) of the mirror. The image formed at the focus is real, inverted (relative to the infinitely distant object), and highly diminished (essentially a point image). For an object at infinity from a concave mirror, the image is formed at the focus, is real, inverted, and highly diminished (point-sized).\" \/>\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\/an-object-is-kept-at-infinity-from-the-position-of-a-concave-spherica\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"An object is kept at infinity from the position of a concave (spherica\" \/>\n<meta property=\"og:description\" content=\"When an object is placed at infinity from a concave spherical mirror, the light rays from the object are considered to be parallel to the principal axis. After reflection from the concave mirror, these parallel rays converge at the principal focus (F) of the mirror. The image formed at the focus is real, inverted (relative to the infinitely distant object), and highly diminished (essentially a point image). For an object at infinity from a concave mirror, the image is formed at the focus, is real, inverted, and highly diminished (point-sized).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/an-object-is-kept-at-infinity-from-the-position-of-a-concave-spherica\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T11:32:43+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":"An object is kept at infinity from the position of a concave (spherica","description":"When an object is placed at infinity from a concave spherical mirror, the light rays from the object are considered to be parallel to the principal axis. 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