The near point of a defective eye is 75 cm form the eye. What is the power of the corrective lens which enables him to read a book kept at least distance of distinct vision.

Jaura’s far point of a myopic eye is 10 cm from the eye. Findthe nature andpower of lens which would enable himto read abook placed at 25 from his eyes.

If far point of myopic person is 50 cm in front of the eye, what is the power of lens required to enable him to see very distant objects clearly ?

The far point of a myopic person is 80 cm. In front of the eye. What is the power of the lens required to enable him to see very distant objects clearly ? In what way does the corrective lens help the person above?Does the lens magnify very distant objects?Explain.