Question

NUMERICALS
1. The speed of light in air is 3 x 109 ms Calcula
the speed of light in glass. The refractive index of
Ans. 2 x 10 m​

Answer 1

Explanation:

The refractive index of a medium (n) is equal to the speed of light (c) divided by the velocity of light through the medium (v). Rearranging the equation allows us to see the relationship regarding v. The lower the refractive index, the faster the velocity of light. Medium A has the smaller refractive