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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?

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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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(a) (i) No, (ii) Yes

(b) Converging lenses

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