Question

state the laws of refraction of light . If the speed of light in vacuum is 3×10^8m/s ,find the absolute refractive index of a medium in which light travels with speed of 1.4 ×10^8m/s. with all steps​

Answer 1

Refractive index=speed of lighti in vaccum/speed of light in medium

speed of light in vaccum=3×10^8

speed of light in medium=1.4×10^8

Refractive index=3×10^8/1.4×10^8

=3/1.4

=30/14

=15/7

=2.14