Question

State the reasons for myopia. With the help of a ray diagram, show the: (a) Image formation by myopic eye, and (b) Correction of myopic eye by using an appropriate lens.

Accepted Answer

1. **Reasons for Myopia (Nearsightedness):** - Excessive curvature of the eye lens. - Elongation of the eyeball. 2. **Ray Diagrams:** - **(a) Myopic Eye:** Parallel rays from distant object focus in front of the retina. - **(b) Correction:** A concave lens of suitable power diverges light rays so that they focus precisely on the retina.

Myopia causes, image formation and correction

Explanation

Practise this under board exam conditions