Geometrical OpticsMedium
Question
A person can see clearly only upto a distance of 25 cm. He wants to read a book placed at a distance of 50 cm. What kind of lens does he require for his spectacles and what must be its power ?
Options
A.Concave, - 1.0 D
B.Convex, + 1.5 D
C.Concave, - 2.0 D
D.Convex, + 2.0 D
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