Question

If the refractive index of diamond is 2.4 find the velocity of light in diamond..

Answer 1

▶ Solution :

Given :

▪ Refractive index of diamond = 2.4

To Find :

▪ Velocity of light in diamond.

Concept :

✒ Refractive index of medium is defined as the ratio of velocity of light in the vaccum to the velocity of light in the medium.

✒ Refractive index is an unitless quantity.

✒ Refractive index is a dimensionless quantity.

Mathematically,

☞ n = (velocity of light in vacuum) ÷ (velocity of light in medium)

Calculation :

→ 2.4 = (3×10^8) ÷ Vd

→ Vd = (3×10^8)/2.4

→ Vd = 1.25×10^8 mps

Answer 2

Answer:

Given :

▪ Refractive index of diamond = 2.4

To Find :

▪ Velocity of light in diamond.

Concept :

✒ Refractive index is an unitless quantity.

✒ Refractive index is a dimensionless quantity.

Mathematically,

☞ n = (velocity of light in vacuum) ÷ (velocity of light in medium)

Calculation :

→ 2.4 = (3×10^8) ÷ Vd

→ Vd = (3×10^8)/2.4

→ Vd = 1.25×10^8 mps