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Question

The angle of a prism is 60. If the refractive index of the material of the prism is 2 the angle of minimum deviation is :
  1. 45
  2. 60
  3. 30
  4. sin1(23)

A
45
B
60
C
sin1(23)
D
30
Solution
Verified by Toppr

μ=sin(D+A2)sin(A/2)

μ=2sin(D+602)

=2sin(D+602)

12=sinD+602

45=D+602

D=(9060)

=30

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