Answer to Question #177007 in Physics for Maria

Question

A certain material has an index of refraction of 2.0. Find (a) the speed of light in that material if light is incident from air to this material at 30^o, (b) the angle between the reflected ray and the incident ray, and (c) the angle of refraction. (d) By how much is the incident light deviated?

Answer 1

a)

$$v=\frac{3\cdot10^8}{2}=1.5\cdot10^8\frac{m}{s}$$

b)

$$\alpha=2(30)=60\degree$$

c)

$$\beta =\arcsin{\frac{\sin{30}}{2}}=14.5\degree$$

d)

$$\gamma=30-14.5=15.5\degree$$