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 
at a point just inside one end of A . The plane of incidence coincides with the plane of the figure. The maximum 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 ExpertsThe correct answer is:
B
From the following ray diagram
⇒ ⇒ 
Therefore maximum number of reflections are 30.
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