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A person is both myopic and hyperopic. He can see objects clearly only if they are...

A person is both myopic and hyperopic. He can see objects clearly only if they are between 31.3 cm c m and 80.0 cm c m . Part A What power of contact lens is required to see a distant object clearly? Express your answer using three significant figures. Part B What power of contact lens is required to read at the normal near point of 25 cm?

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