Question

A ray of light enters from air to a medium making an angle 45 and angle of refraction is 30 degrees find the refractive index of the medium​

Answer 1

Explanation:

by snells law

u1.sini= u2.sinr

u1=1

sin (45°)=u2.sin (30°)

u2=sin (45°)/sin (30°)

u2=under root (2)