Question

A ray of light in air “n1”is incident strikes with an angle of incidence of 60 degrees on flint glass”n2”. Calculate the angle of refraction to the nearest degree (8 pts).

Answer 1

$$\sin{\theta}=\frac{\sin{60}}{1.69}\\ \theta=\arcsin{\frac{\sin{60}}{1.69}}=30.8\degree$$