Question

Two plane mirrors are inclined to each other at an angle 70° as shown in figure. Aray of light PO incident at some angle i on
the mirror M, and falls after reflection from it on the other mirror M, from whcih it get reflected along a direction parallel
to the plane mirror M. Find the value of i.
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Answer 1

Answer:

70

Explanation:

the two light rays fallin the same angle