Prove the following statements. 1. If the angle of incidence and angle ofemergence of a light ray falling on aglass slab are iand e respectively, provethat, i= e.

Prove the following statements. 1. If the angle of incidence and ang

1.	Prove the following statements. 1. If the angle of incidence and angle ofemergence of a light ray falling on aglass slab are iand e respectively, provethat, i= e.
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