The far point of a person suffering from myopia is 4 m from the eye. Find the power of the corrective lens he will have to used in order of see distant objects?

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.

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 ? The person above prefers to remove his spectacles,while reaing a book.Explain,why.

A certain myopic person has a far point of 150 cm. What power of a corrective lens must have to allow him to see distant objects clearly ?

The near point of a person suffering from hypermetropia is 75 cm. calculate the focal length and power of the lens required to enable him to read the newspaper which is kept at 25 cm form the eye.

The far point of a myopic person in 80 cm in front of the eye. What is the nature and power of the lens required to correct the problem?