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प्रश्न
A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power:
पर्याय
+ 0.5 D
– 0.5 D
+ 0.2 D
– 0.2 D
MCQ
उत्तर
– 0.5 D
Explanation:
A person cannot see distant objects clearly. So he is suffering from myopia. The defect is corrected by using the concave lens of power.
P = `1/"f" = 1/(-2 "m")` = – 0.5
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