The lens of a camera is moved 0.46 mm to change focus from a person 50.0 m away to one that is 5.0 m away.What is the focal length of the lens of a camera?
A) 20.0 mm
B) 24.0 mm
C) 37.0 mm
D) 41.0 mm
E) 50.0 mm
Correct Answer:
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