Question

The refractive index of four substances A,B,C and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of

light is maximum in _________​

Answer 1

Step-by-step explanation:

We know that the relationship between velocity and refractive index is given by:

n= c/v

Where,

n= refractive index of medium

c= Velocity of light in vaccum

v= Velocity of light in that medium

Rearranging the above equation we get

v=c / n

Velocity and refractive index are inversly

porportional.

Hence when the refractive index is smaller the velocity of light will be maximum.

So the medium A having the least refractive index will have the maximum velocity.