Question

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

Answer 1

Refractive index =3000000÷124000=2.41

I hope it will help uh.

Answer 2

the refractive index of diamond = speed of light in air divided by speed of light in diamond.
that is,
300000 km/s ÷ 124000 km/s
=2.419