Question

Trace the path of the rays if it were incident normally on the face ac

Answer 1

$\huge\underline\ornage{\sf Answer}$

Two monochromatic rays of light are incident normally on the face AB of an isosceles right-angled prism ABC. The refractive indices of the glass prism for the two rays ‘1’ and ‘2’ are respectively 1.35 and 1.45.

Answer 2

Explanation:

If iC is the critical angle for the prism/ material,

Angle of incidence at face AC of the prism = 60° Hence, refracted ray grazes the surface AC. => Angle of emergence = 90° => Angle of deviation = 30°.