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Two plane mirrors  and  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 . The plane of incidence coincides with the plane of the figure. The maximum number of times the ray undergoes reflection (including the first one) before it emerges out is

 



Question ID - 152649 | SaraNextGen Top Answer

Two plane mirrors  and  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 . The plane of incidence coincides with the plane of the figure. The maximum number of times the ray undergoes reflection (including the first one) before it emerges out is

 

1 Answer
127 votes
Answer Key / Explanation : (30) -

From the following ray diagram

Therefore maximum number of reflections are 30

127 votes


127