Under which of the following conditions a concave mirror

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Under which of the following conditions a concave mirror can form an image larger than the actual object? (a) When the object is kept at a distance equal to its radius of curvature (b) When object is kept at a distance less than its focal length (c) When object is placed between the focus and centre of curvature (d) When object is kept at a distance greater than its radius of curvature

why not option (b)

Answered by admin @


Explanation:

A concave mirror can form an image larger than the actual object when the object is placed between the focus and centre ofcurvature. Image formation is shown below, where object (AB) is placed between the focus and centre ofcurvature for which image (A'B') is obtained behind the mirror.


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