Required information A man requires reading glasses with +2.15-D refractive power to read a book held 40.0 cm away with a relaxed eye. Assume the glasses are 2.15 cm from his eyes. His uncorrected near point is 1.00 m. If one of the lenses is the one for distance vision, what should the refractive power of the other lens (for close-up vision) in his bifocals be to give him clear vision from 25.0 cm to infinity? D
Required information A man requires reading glasses with +2.15-D refractive power to read a book held 40.0 cm away with a relaxed eye. Assume the glasses are 2.15 cm from his eyes. His uncorrected near point is 1.00 m. If one of the lenses is the one for distance vision, what should the refractive power of the other lens (for close-up vision) in his bifocals be to give him clear vision from 25.0 cm to infinity? D
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Transcribed Image Text:Required information
A man requires reading glasses with +2.15-D refractive power to read a
book held 40.0 cm away with a relaxed eye. Assume the glasses are
2.15 cm from his eyes.
His uncorrected near point is 1.00 m. If one of the lenses is the one for distance vision,
what should the refractive power of the other lens (for close-up vision) in his bifocals be
to give him clear vision from 25.0 cm to infinity?
D
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