question_answer

A ray of light falls on the surface of a transparent slab after travelling in air medium as shown in the picture below. Find the angle made by the refracted ray with the normal within the slab if the refractive index of the material of the slab is \[\sqrt{2}\] and incident ray makes an angle of \[45{}^\circ \]with the normal.

A) \[90{}^\circ \]

B) \[60{}^\circ \]

C) \[40{}^\circ \]

D)  \[30{}^\circ \]

E)  None of these