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Physics
Physics
Problem
A light ray strikes a plane mirror such that the angle between the ray and the mirror’s surface is
20
∘
20^{\circ}
2
0
∘
. What is the angle between the reflected ray and the normal to the surface? a)
40
∘
40^{\circ}
4
0
∘
b)
20
∘
20^{\circ}
2
0
∘
c)
70
∘
70^{\circ}
7
0
∘
d)
110
∘
110^{\circ}
11
0
∘
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