Physics, asked by Benrahul, 1 year ago

Two mirrors are inclined at an angle q. Light ray is incident parallel to one of the mirrors. The ray will start retracing it's path after third reflection. Find angle q.

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Answered by knligma

Two mirrors are inclined at an angle θ as shown in the figure. Light rays is incident parallel to one of the mirrors. Light will start retracing its path after third

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