Question

For the same value of angle of incidence ,refraction in 3 media A,B and C are 15°,25°,and 35° respectively .In which medium velocity light minimum?

Answer 1

Explanation:

We have,

$sin \: i = \frac{1}{n}$

Where n is the refractive index of the medium.

Also, we know that,

$v = \frac{c}{n}$

Where v is the velocity.

So we have,

sin i propotional to v.

So we can conclude that A has min. velocity.