A piece of wire bent into an shape

PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

A piece of wire bent into an LL shape, with upright and horizontal portions of equal length 10 cm10\,\mathrm{cm} each, is placed with the horizontal portion along the principal axis of a concave mirror and directed towards its pole. The radius of curvature of the mirror is 10 cm10\,\mathrm{cm}. If the bend is 20 cm20\,\mathrm{cm} from the pole, the ratio of the lengths of the images of the upright and horizontal portions of the wire is (1) 1:21:2 (2) 1:31:3 (3) 1:11:1 (4) 2:12:1

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