Question

The speed of yellow light in a certain liquid is 2⋅4 × 108 m s−1. Find the refractive index of the liquid.​

Answer 1

n₂/n₁ = v₁/v₂

n₂ = ? ; n₁ = 1 ; v₁ = 3 X 10⁸ m/s ; v₂ = 2.4 X 10⁸ m/s

n₂ = 30/24

n₂ = 5/4

Answer 2

Given :

The speed of yellow light in a certain liquid is 2⋅4 × 10⁸ m s−1.

μ liquid=?

Speed of light in Air= 3x10 ⁸m/s

μ liquid= C/V

= 3x10 ⁸/2⋅4 × 10⁸

=1.25

∴ Refractive index of liquid is 1.25