Question

The speed of light in diamond 1,24,000 k/s. find the refractive index of diamond if the speed of light in air is 3,00,000 Km/s.

Answer 1

Refractive index = Speed of light in air / Speed of light in medium
= (300 000 km/s) / (124 000 km/s)
= 2.4

Refractive index of diamond is 2.4

Answer 2

Answer:

air n medium = Speed of light in air/Speed of light in medium = c/v

air n diamond = 3,00,000 kms-1/ 1,24,000 kms-1

      = 2.42

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