Physics, 21.09.2019 19:30, abolton04

Aperson can read the newspaper when it is held at 60 cm from his eyes. what should the focal length of his contact lenses be to allow him to read the newspaper comfortably at a distance of 30 cm? (a) -30 cm (b) 60 cm (c) -60 cm (d) 30 cm

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Aperson can read the newspaper when it is held at 60 cm from his eyes. what should the focal length...