Two plane mirrors are inclined at

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

Problem

Two plane mirrors are inclined at 60∘60^{\circ}. A light ray travels along the angle bisector toward their line of intersection and undergoes one reflection at each mirror before emerging. What happens to the emergent ray? (a) It is deviated by 60∘60^{\circ} from its original direction. (b) It is deviated by 120∘120^{\circ} from its original direction. (c) It returns along the incident path (opposite direction). (d) It is deviated by 90∘90^{\circ} from its original direction.

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