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Question

In order to obtain a magnification of, -2 (minus 2) with a concave mirror, the object should be placed : (a) between pole and focus (b) between focus and centre of curvature (c) at the centre of curvature (d) beyond the centre of curvature

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Solution

Answer : (b) between focus and center of curvature

Explanation: magnification -2 means that image is inverted and large. It is obtained when the object is between focus and center of curvature.
Diagram:
object between C and F concave mirror

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