Single Answer MCQ
Q-00019564

What is the value of the refractive index of a medium if the speed of light in vacuum is 3 × 10^8 m/s and in the medium it is 2 × 10^8 m/s?

1

1.5

2

0.67

3

1.0

4

0.5

Answer and Solution

Answer

A. 1.5

Solution:

The refractive index is calculated as (3 × 10^8) / (2 × 10^8) = 1.5.

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