(a) The near point of a hypermetropic pe...

(a) The near point of a hypermetropic person is at `75 cm` from the eye. What is the power of the lens required to enable him to read clearly a book held at `25 cm` from the eye ?
(b) In what way does the corrective lens help the person above ? Does the lens magnify objects held near the eye ?
( c) The person above prefers to remove his spectacles while looking at the sky. Explain why ?

+ 2.67 D

- 3.42 D

4.62 D

5.42 D

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