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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 `30^@` 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 undergors reflections(including the first one,before it emerges out is

A

28

B

30

C

32

D

34

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
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