Question

The velocity of light in air is 3×10^8 m/s and in opaque glass is 1.4×10^8 m/s. Calculate the refractive index of glass

Answer 1

Explanation:

The velocity of light in air is 3×10^8 m/s and in opaque glass is 1.4×10^8 m/s. Calculate the refractive index of glass

Answer 2

Answer:

Refractive index, n =1.5

speed of light in glass, v =?

speed of light in vacuum, c = 3*10'8 m/s

n=c/v

v=c/n

v=3*10'8/1.5=2*10'8m/s