Question

The speed of light inside a medium is (2.0 x 10^8m/s) What is the index of refraction (n) of the medium?

Answer 1

Refractive index of a medium = Speed of light in vacuum/Speed of light in a medium

1.5 = 3 x 108 / Speed of light in medium

Speed of light in the medium = 3 x 108 /1.5

= 2 x 108 m/s.

Step-by-step explanation: