Two plane mirrors P and Q are kept at an angle with respect to each other. Light falls on P is reflected and then
fall on Q and is reflected. The emergent ray is opposite to incident ray direction. Then the value of @is equal to
30°
60°
90°
45
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Explanation:
Answer: (d)
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Explanation:
Two plane mirror A and B are inclined at angle θ(<90o) to each other. A light ray parallel to mirror B is incident on mirror A and it becomes parallel to mirror A after reflection from mirror B. Find the value of angle θ.
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