The far point of a myopia eye is at `40 cm`. For removing this defect, the power of lens required will be

The far point of a myopic person is 120 cm in front of the eye. Calculate the power of the lens required to enable the person see distant object clearly.

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 myopia person is 200 cm. Calculate the power of a lens required to enable him to see distant objects clearly.

The far point of a myopia eye is 60 cm. Find the focal length of the lens used to correct it.

The far point of a myopic eye is at 50 cm . Calculate the power of the lens to correct his vision.

The far point of a myopic eye is 100 cm. What is the focal length of the lens required to see very distant (normal far point) objects clearly?