Question

Help!

The speed of light in vacuum is 300,000,000 m/s and the speed of light in water is 225,000,000 m/s. What is the refractive index?
A. 1.33
B. 1.5
C. 1
D. 2.33

Answer 1

A 1.33

Step-by-step explanation:

Refractive index = (speed of light in vacuum)/(speed of light in another medium)

Refractive index = (300000000)/(225000000)

Refractive index = 1.33