Answer to Question #90724 in Optics for Kavyasree

Question #90724

A far sighted person has his near point 50cm,find the power of lens he should use to see at 25cm, clearlly

Expert's answer

according to the formula of the lens:

"D=\\frac{1}{d}-\\frac{1}{f} = \\frac{1}{0.25}-\\frac{1}{0.5} = 2 dioptriy"

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