Author Question: Two mirrors are at right angles to one another. A light ray is incident on the first at an angle of ... (Read 72 times)

ereecah · **on:** Jul 28, 2018

Two mirrors are at right angles to one another. A light ray is incident on the first at an angle of 30 with respect to the normal to the surface. What is the angle of reflection from the second surface?
a. 30
b. 60
c. 45
d. 53
e. 75

Question 2

A light ray is incident on the surface of water (n = 1.33) at an angle of 60 relative to the normal to the surface. The angle of the reflected wave is
a. 80
b. 40
c. 20
d. 60
e. 30