Question

Speed of light in air is 3x 10^8 m/s. The speed of light in water (Refractive Index 4/3) will be *

a) 2.25 x 10^8m/s
b) 4 x 10^8m/s
c) 2 x 10 ^8m/s
d) 2.55 x 10^8m/s

Answer 1

Answer:

d) 2.55 × 10^8m/s

Explanation:

So speed of light in vacuum is 3 x 108 m/g. So speed of light in water is (2.25) x 108 m / s .