Question

if the speed of light in a medium is 2.21 x 10⁸m/s. What is the absolute refractive index of the medium​

Answer 1

Explanation:

Given: Speed of light in medium (v2) = 1.5 × 108 m/s,

velocity of light in vacuum (v1) = 3 × 108 m/s

To find: Absolute refractive index (n)

Formula: n =

v

v

v1v2

Calculation: From formula,

n =3×1081.5×108= 2

The absolute refractive index of the medium is 2.