Question

The speed of a light wave in air is 3.00 x 108 m/s. The refractive index of water is 1.33.

Calculate the speed of the light wave in water.

Answer 1

Answer: refractive index = c/v

Step-by-step explanation:

refractive index = c/v

1.33=3x10^8/v

v=3x10^8/1.33

=2.255x10^8 m/s

Answer 2

2.25 x 108 m/s

Step-by-step explanation:

If the speed of light in air is 3 x 108 m/s and the refractive index of water is 1.33, find the speed of light in water. (Ans. 2.25 x 108 m/s)