The angles of refraction of a very thin prism is `1^(@)`. A light say is incident normally on one of the refracting surface. The ray that ultimately emerges from the first surface, after suffering from the second surface. Makes an angle of `3.32^(@)` with the normal. the deviation of the ray emerging from the second surface and the refractive index of the material of the prism respectivley, are

Options

A. `0.66^(@),1.66`
B. `1.66^(@),1.5`
C. `1.5^(@),1.66`
D. `0.66^(@),1.5`

Answer

A

Explanation

`(3.32^(@))/(n) = 2^(@) rArr n = 1.66`.