Question

Which among the following media, Light travel with maximum speed? Diamond , Ruby , Crown , glass , Water.

Answer 1

Answer:

Water

Explanation:

v= c/ u, u is refractive index of the material.

In water, u is small as compared to others given..

u of water~1.3

u of glass~1.5

u of water< u of glass

Thus, WATER is the answer.