Ramesh cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
- A. + 0.5 D
- B. - 0.5 D ✓
- C. + 0-2 D
- D. 0-2 D
Correct Answer: B. - 0.5 D
Explanation
The person suffers from myopia (short-sightedness). The far point is 2 m. Focal length required f = -2 \text{ m}. Power P = 1/f = 1/(-2) = -0.5 \text{ D}.
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