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Q.

A ray incident a 15° on one refracting surface of a prism of angle 60°, suffers a deviation of 55°. What is the angle of emergence

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a

95∘

b

45∘

c

30∘

d

100°

answer is D.

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Detailed Solution

Usingδ=i1+i2−A⇒55=15+i2−60⇒i2=100∘
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