The drawing shows a top view of a square room. One wall is missing and the other three are each mirrors. From point P in the center of the open side, a laser is fired, with the intent of hitting a sma

Question

The drawing shows a top view of a square room. One wall is missing and the other three are each mirrors. From point P in the center of the open side, a laser is fired, with the intent of hitting a small target located at the center of one wall. Identify vector in whose direction the laser can be fired and score a hit, assuming that the light does not strike any mirror more than one.

TestHub · Accepted Answer

Unfold the room: reflect the target wall across each mirror to get image targets.

Each listed vector direction from P reaches one of these image targets with exactly one reflection.

All four directions score a hit without striking any mirror twice.

Answer: A,B,C,D

Physics - Geometrical Optics Question with Solution | TestHub

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