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Two plane mirrors A and B are aligned pa...

Two plane mirrors A and B are aligned parallel to each other as shown in the figure. A light ray is incident at an angle of `30^(@)` at a point just inside one end of A. The number of times the ray undergoes reflections (including the first one) before it emerges out is

A

28

B

30

C

32

D

34

Text Solution

Verified by Experts

The correct Answer is:
B
Maximum number or relfections `=[(l)/(x)]` , where `x=0.2tan30^(@)`
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