AN unpolarised beam of light is incident at the polarising angle on the surface of a transparent medium of refractive index 1.6. The angle of refraction in the medium is

Options

A. `58^(@)`
B. `29^(@)`
C. `32^(@)`
D. `42^(@)`

Answer

C

Explanation

`tan(i_p)=1.6`
`:. i_p=tan^(-1) (1.6)=58^(@) " ":. r=90^(@)-58^(@)=32^(@) `