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Question: One of the refracting surfaces of a prism of angle 30<sup>0</sup> is silvered. A ray of light incide...

One of the refracting surfaces of a prism of angle 300 is silvered. A ray of light incident at an angle of 60° retraces its path . The refractive index of the material of the prism is –

A

2\sqrt { 2 }

B

3\sqrt { 3 }

C

3/2

D

2

Answer

3\sqrt { 3 }

Explanation

Solution

1 sin 600 = m sin 300

\ m = 3\sqrt { 3 }