Question

The speed of light in medium A is 1.4 X 10^8m/s. What is the refractive index of the medium?

(a) Colored Image form

(b) Black and white image form

(c) 3-D image form

(d) Coded form

Answer 1

Correct option is (d) Coded form

The explanation is: We know, speed of light in a medium = c/refractive index of the medium

Therefore, mew = c/v

= 3 X 10^8/ 1.4 X 10^8

= 2.16.