Question

If the velocity and wavelength of light in air is Va and λa and that in water is Va and λw, then the refractive index of water is Va/Vw
What is the explanation

Answer 1

Answer:

Light wave has highest speed in vacuum.

The refractive index of water is lesser than glass. As we know that speed of light in any medium is inversely proportional to its refractive index. So the velocity of light wave will be higher in water as compared to glass.

So V

c

>V

w

and V

w

>V

g