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A person cannot see the objects clearly placed at a distance more than 40 cm

A person cannot see the objects clearly placed at a distance more than 40 cm. He is advised to use a lens of power

Options

(a) -2.5 D
(b) 2.5 D
(c) -6.25 D
(d) 1.5 D

Correct Answer:

-2.5 D

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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