A mirror is rotated at an angle of 10° from its original position. How much is the rotation of the angle of reflection?
A) 10°
B) 5°
C) 15°
D) 20°
E) 40°

Name: A mirror is rotated at an angle of 10° from its original position. How much is the rotation of the angle of reflection? A) 10° B) 5° C) 15° D) 20° E) 40°
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Question

Quizplus · Accepted Answer

When a mirror is rotated by an angle θ, the angle of reflection changes by 2θ. Therefore, if the mirror is rotated by 10°, the angle of reflection changes by 20°.

A Mirror Is Rotated at an Angle of 10° from Its