Question

The refractive index of diamond is 2.42. what is the meaning of this statement?​

Answer 1

Answer:

This means that the speed of light in diamond will reduce by a factor of 2.42 as compared to its speed in air. ... In other words, the speed of light in diamond is 1/2.42 times the speed of light in vacuum.

Explanation:

Answer 2

Answer:

The refractive index is the difference between one medium and another medium.

Thanks...........☺☺