A lens of focal length 45 mm is used as a magnifier. The object being viewed is 6.8 mm long, and is positioned at the focal point of the lens. The lens is moved closer to the object, so that the image is now 25 cm from the lens
The distance the lens has been moved, in cm, is closest to: A) 0.69
B) 0.76
C) 0.62
D) 0.55
E) 0.48
A
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