Question

under what condition in an arrangement of two plane mirrors,incident ray and reflected ray will always be parallel to each other whatever may be the angle of incidence.show the same with the help of a diagram

Answer 1

angle between two mirrors should be 90°

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Answer 2

‼️ answer ‼️

When two plane mirrors, like A and B, are placed perpendicular to each other, the incident ray and reflected ray will always be parallel to each other, whatever may be the angle of incidence.

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