Two plane mirrors \( A \) and \( B \) are aligned parallel to each other, as shown in the figure...

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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 \( 30^{\circ} \) 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
[IIT-JEE (Screening) 2002]
(a) 28
(b) 30
(c) 32
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