Question

If the angle of incidence of a ray of light falling on a surface is 60° and the angle of refraction is 45°. what is the refractive index of the surface?

Answer 1

60 + 45 is equals to 105 the refractive index of the surface

Answer 2

The refractive index is given by Snell's law ie,
sin i / sinr = sin 60 / sin 45 = root 3 / root 2



Hope this helps