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A man with normal near point (25 cm) rea...

A man with normal near point (25 cm) reads a book with small print using a magnifying glass: a thin convex lens of focal length 5 cm.
b) What is the maximum and the minimum angular magnification (magnifying power) possible using the above simple microscope?

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b) Max. Angular magnification
`m=(d)/(u)=(25)/(25//6)=6`
Min. Angular magnification
`m'=(d)/(u')=(25)/(5)=5.`
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