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The near point of a long-sighted person is 50 cm from the eye. The near point of a long-sighted person is 50 cm from the eye. (a) Can she see clearly an object at (i) a distance of 20 cm? (ii) at infinity?
The Human Eye and Colourful World
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28/08/2021 7:27 pm
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The near point of a long-sighted person is 50 cm from the eye. The near point of a long-sighted person is 50 cm from the eye.
(a) Can she see clearly an object at (i) a distance of 20 cm? (ii) at infinity?
(b) To read a book held at a distance of 25 cm, will she need converging or diverging spectacle lenses?
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28/08/2021 7:28 pm
(a) (i) No, (ii) Yes
(b) Converging lenses
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