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Physics-

General

Easy

Question

A simple magnifying lens is used in such a way that an image is formed at 25 cm away from the eye. In order to have 10 times magnification, the focal length of the lens should be

5 cm
2 cm
25 mm
0.1 mm

The correct answer is: 5 cm

$fraction numerator D over denominator F end fraction$ or $fraction numerator 25 over denominator F end fraction$

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