Question

A ray of light enters from air to a medium X. The speed of light in the medium is 1.5 x 10 m/s and the speed of light in air is 3 x 10 m/s. Find the refractive index of themedium X​

Answer 1

Answer:

3×10m/s ÷1.5×10m/s = refractive index

therefore,2= refractive index