Plane mirrors A and B are kept at angle 0 with respect to each other. – McqOptions

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1.	Plane mirrors A and B are kept at angle 0 with respect to each other. Light falls on A is reflected then falls on B and is reflected. The emergent ray is oppsite to the incident direction. The angle 0 is equal to
A.	30
B.	45
C.	60
D.	90
Answer» E.

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