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Question:

A light wave is incident normally on a glass slab of refractive index 1.5.

10 V/m

24 V/m

30 V/m

6 V/m

Solution:

Prefracted=96100P1⇒K2A2t=96100K1A2i⇒r2A2t=96100r1A2i⇒A2t=96100×132×(30)2At=√64100×(30)2=24