An object, placed 12.0 cm from a lens, produces an image with a magnification of 5.0. What is the focal length of the lens?
A)
24 cm
B)
18 cm
C)
60 cm
D)
15 cm
E)
9 cm
D
Physics & Space Science
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A. 
B. 
C. 
D. 
E. 
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