Question

he near point of a hypermetropic eye is at 75 cm from the eye. What is the power of the le
required to enable him to read clearly a book held at 25 cm from the eye?
(P= 2.66D)
20. A myopic person uses specs of power - 0.50. What is the distance of far point of his eye?
(2m)
21. A person wants to read a book placed at 20 cm, whereas near point of his eye is 30
calculate the power of the lens required
(1.67D).
2. The far point distance of a short sighted person is 1.5 meters. find the focal length, power
nature
of
the
remedial
le
(-1.5 m,-0.67D, concave lens)
3. A person having a myopic eye uses a concave lens of focal length 10 cm. Find the powe
the lens.
(-IOD)​

Answer 1

searches related to he near point of a hypermetropic eye is at 75 cm from the eye. What is the power of the le required to enable him to read clearly a book held at 25 cm from the eye? (P= 2.66D) 20. A myopic person uses specs of power - 0.50. What is the distance of far point of his eye? (2m) 21. A person wants to read a book placed at 20 cm, whereas near point of his eye is 30 calculate the power of the lens required (1.67D). 2. The far point distance of a short sighted person is 1.5 meters. find the.

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