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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
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a
5 cm
b
2 cm
c
5 mm
d
None of these
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Correct option is D
m=1+Dfe⇒10=1+25fe⇒fe=259Similar Questions
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