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A person cannot see the object distinctl...

A person cannot see the object distinctly, when placed at a distance less than 100 cm. What is the power of the spectacles that he should use to see clearly the objects placed at 25 cm ?

A

`+1.0 D`

B

`+2.5 D`

C

`+3.0 D`

D

`+10.0 D`.

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