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How Far from a Lens of Focal Length 50

Question 42

Multiple Choice

How far from a lens of focal length 50.0 mm must the object be placed if it is to form a virtual image magnified in size by a factor of three?


A) 38.3 mm
B) 54.4 mm
C) 33.3 mm
D) 48.0 mm
E) 42.2 mm

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