Make a diagram to show how hypermetropia is corrected. The near point of a hypermetropic eye is 1 m. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is 25 cm.

The near point of a Hypermetropic eye is 1 m. What is the nature and powe of the lens required to correct this defect ? (The near point of the normal eye is 25 cm)

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

The near point of a hypermetropic person is 75 cm from the eye. What is the power of the lens required to enable the person to read clearly a book held at 25 cm from the eye ?

What is the focal length of bi-convex lens to use to correct a hypermetropia in terms of near point 'd'?

A man suffering from short-sight is unable to see objects distinctly at a distance more than 2m . The power of lens required to correct this defect should be

The near point of a hypermetropic person is 75 cm from the eye. What is the power of the lens required to enable the person to read clearly a book held at 25 cm from the eye ? In what way does the corrective lens help the above person? Does the lens magnify objects held near the eye ?

What is hypermetropia ? What are the causes of this defect ? How can this defect of the eye be corrected ?