The possible way to restore clear vision of those people whose eyeball has elongated is the use of suitable

Question

Accepted Answer

## Model Answer **Answer: B — Concave lens** Elongation of the eyeball causes myopia (near-sightedness). It is corrected by using a **concave lens** of suitable power. *Source: Chapter 10, Section 10.2(a) – Myopia* ## Explanation The key link is: **elongated eyeball → myopia → concave lens**. The passage explicitly states myopia "may arise due to…elongation of the eyeball" and "can be corrected by using a concave lens of suitable power." Students often confuse this with convex lens (used for hypermetropia). Remember: **Myopia = concave; Hypermetropia = convex**.

Science (086) — CBSE Class 10 board question