Question

the speed of the light in a diamond is 1,24,000km/s. find the refractive index of the diamond if the speed of light in air is 3,00,000 km/s.

Answer 1

Absolute refractive index=Speed of light in vacuum/Speed of light in diamond
=$\frac{3,00,000}{1,24,000}$
=2.419...
=2.42 (approx)
Ans:The absolute refractive index of diamond is 2.42.

----------------------------------------------------------------------------------

Answer 2

heya...

Here is your answer...

Given;

Speed of the light in a diamond = 1,24,000km/s

speed of the light in air = 3,00,000 km/s

Refractive index of diamond =

3,00,000/1,24,000

= 2.42

It may help you...☺☺