Question

A cubic container is filled with a liquid whose refractive index increases linearly from top to bottom. Which of the following represents the path of a ray of light inside the liquid?
A.
B.
C.
D.

Answer 1

Correct Answer - a.
Since the refractive index is changing, the light cannot travel in a straight line in the liquid as shown in option (c) and (d). Initially, it will bend towards normal and after reflecting from the bottom it will bend away form the normal as shown below