.A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power [NCERT Exemplar Problems]
Question
(a) + 0.5 D
(b) – 0.5 D
(c) + 0.2 D
(d) – 0.2 D
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Class 10 science
3 years
2021-11-19T18:40:59+00:00
2021-11-19T18:40:59+00:00 1 Answer
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Answer ( 1 )
Answer: b
Explanation:
(b) Person cannot see distant objects clearly. So he is suffering from
myopia. The defect is corrected by
using concave lens of power
P = \(\frac{1}{f}=\frac{1}{-2 m}\) =-0.5