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in Physics by (96.0k points)
A person has a minimum distance of distinct vision as 50cm. The power of lenses required to read a book at a distance of 25cm is
A. 3 D
B. 1 D
C. 2 D
D. 4 D

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1 Answer

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by (96.2k points)
Correct Answer - C
Using, `P=(1)/(f)`
We get, `P=2 D`

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