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7. A farsighted man uses contact lenses with a refractive power of 1.95 diopters. Wearing the...

7. A farsighted man uses contact lenses with a refractive power of 1.95 diopters. Wearing the contacts, he is able to read books held no closer than 0.255 m from his eyes. He would like a prescription for eyeglasses to serve the same purpose. What is the correct prescription for the eyeglasses if the distance from the eyeglasses to his eyes is 0.025 m?

_________ diopters

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This problem is from topic eye defects .We will use lens formula in different situations.

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