Question

(i) "The refractive index of diamond is 2.42". What is the meaning of this statement?
(ii) Name a liquid whose mass density is less than that of water but it is optically denser than water.

Answer 1

Explanation:

this means that the ratio of the speed of light in air and speed of light in water is 2.42.

the liquid whose mass density is less than water but is optically denser than water is kerosene