Question

The velocity of light in water is ¾ times the velocity of light in vacuum. Find the refractive index of water.

Answer 1

Answer:

4/3

Explanation:

refractive index = speed of light in vacuum / speed of light in other medium

refractive index of water = x/(3/4)x = 1/(3/4) = 4/3

Answer 2

See the image attached above !

hope this will helps you!