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Question: A ray of light is incident at 60<sup>0</sup> on one face of a prism of angle 30<sup>0</sup> and the ...

A ray of light is incident at 600 on one face of a prism of angle 300 and the emergent ray makes 300 with the incident ray. The refractive index of the prism is :

A

1.732

B

1.414

C

1.5

D

1.33

Answer

1.732

Explanation

Solution

:

Here,

As

Hencs emergent ray is normal to the surface

As r1+r2=A\mathrm { r } _ { 1 } + \mathrm { r } _ { 2 } = \mathrm { A }