Question

Calculate the Speed of the Light in Water
The index of refraction of light in water is 1.33, and the speed of light in vacuum is 3 * 100000000 m/s. Calculate the speed of the light in water?

Answer 1

We have the formula n = c/v; where n is the index of refraction, c is the speed of light in vaccum and v is the speed of light in the given medium.

Here we have
c = 3 x 10^8 m/s
n = 1.33

Hence v = 2.25 x 10^8 m/s

Hence the speed of light in water is 2.25 x 10^8 m/s

Answer 2

Answer:

Step-by-step explanation:

Refractive index = Speed of light in vaccum / Speed of light in water. It is denotes as n = c / v, v = c / n= 3 × 10^8 m/s / (1.33) = 2.25 × 10^8 m/s.

Therefore, refractive index of the water can be measure by the Speed of light in water is 2.25 × 10^8 m/s.