The near point of a long-sighted person is 50 cm from the eye.

(a) Can she see dearly 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?

(a) (i) The near point of a long-sighted person is 50 cm from the eye so he cannot see clearly an object at a distance of 20cm.

(ii) The near point of a long-sighted person is 50 cm from the eye so he cannot see clearly an object at infinity.

(b) To read a book held at a distance of 25 cm, she will need converging spectacle lens.

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