Physics, asked by zishan500mirza, 3 months ago

a person suffering from long sightedness can see object clearly at a distance of 40 cm the least distance of distinct vision is 25 cm find focal length

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Answered by seandsouza847

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Physics

A long sighted person has a least distance of distinct vision of 50 cm. He wants to reduce it to 25 cm. He should use a :

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