Question

What is the speed of the light in a medium whose refractive index is 1.5,if the speed of light in air is 3x10^8ms^-1

Answer 1

Answer:

2 * 10^ 8 m/s

Explanation:

We know a relation

Refractive Index = speed of light in air/speed of light in medium

1.5 = 3 * 10^8/ speed of light in medium

speed of light in medium = 3 * 10^8/1.5

speed of light in medium = 2 * 10^8 metres/second