Question

A ray of light is traveling in a glass with an index of refraction of n = 1.50 and strikes a glass/air interface. If the angle of incidence is 35°, Calculate the angle of refraction?

Answer 1

Solution

In optics refractive index of the medium is given by

$n=\frac{sin \space i}{\sin r}$

Angle of incidence i=35°

Angle of refraction=r

Refractive index n=1.50

$\sin r=\frac{\sin 35°}{1.50}=0.38$

Angle of refraction

$r=\arcsin (0.38) =22.33°$