The refractive index of material of a prism of angles `45^(@)`, `-45^(@)`, and `-90^(@)` is 1.5. The path of the ray of light incident normally on the gypotenuse side shown in

Options

A.
B.
C.
D.

Answer

a.

Explanation

`Sini_(c)=(1)/(1.5)=(2)/(3)`
`i_(c)=sin^(-10)((2)/(3))=sin^(-1)(0.6667)=41.8^(@)`
The angle of incidence of face AC is `45^(@)` which is clearly greater than `41-8^(@)` .