Question

A ray incident at angle θ on a face PQ of glass slab and passes through the opposite face RS as shown below. d is the lateral displacement of the ray. If whole system is placed in the water whose refractive index is less than that of glass slab, then the lateral shift (d′) a)Will be less than d b)Will be greater than d c)Will be equal to d d)Will become zero

Answer 1

Answer:

It'll be lesser than d

Explanation: It is due to the fact that the initial difference of the optical densities is greater in the case of air and glass... now as water is more optically denser than air, the d value comes down , due to lesser difference in densities