A ray of light in air is incident at an angle of on a parallel-sided glass plate of…

PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

A ray of light in air is incident at an angle of

45^{\circ}

on a parallel-sided glass plate of refractive index

1.5

. The far side of the plate is in contact with water of refractive index

1.33

. What is the angle that the emergent ray in water makes with the normal? (a)

28^{\circ}

(b)

32^{\circ}

(c)

36^{\circ}

(d)

25^{\circ}