Question

A ray of light enters from air to a medim X. The speed of light in the medium is 1.5 × 108

m/s and the

speed of light in air is 3 × 108

m/s. Find the Refractive index of the medium X.​

Answer 1

Answer:

Explanation:

So, Refractive Index= U,

U=speed of light in medium 1/ speed of light in medium 2

so, U= speed of light in air / speed of light in medium X

U= 3*10^8 / 1.5*10^8

U=3/1.5=2 m/s