Question

under what condition in an arrangement of two plane mirror , incident ray and reflected ray will always be parallel to each other. whatever be the angle of incidence? Show the same with the help of diagram​

Answer 1

Answer:

When mirrors are placed at right angle to each other.

Explanation:

When two plane mirrors are placed at right angle with each other, then incident ray and reflected ray will always be parallel to each other, whatever may be angle of incidence.

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Answer 2

Answer when mirrors are placed at right angles to each other