Question

(b) The refractive indices of water and glass with respect to air are 4/3 and 3/2 respectively.
If the speed of light in glass is 2x10^8m/s. Find the speed of light in water.​

Answer 1

Answer:

2.25*10^8

Explanation:

ratio=4/3=speed of light in air/speed of light in water

so 3*10^8/x = 4/3

3*3*10^8/4=2.25*10^8