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0 votes
36.1k views
in Physics by (56.7k points)

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

(A) θ = 45°

(B) θ = 30°

(C) θ = 60°

(D) all three

1 Answer

+2 votes
by (50.2k points)
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Best answer

Correct Answer is: (B) θ = 30°

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