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Questions  

A person can not see the objects beyond 50 cm. The power of a lens to correct this vision will be

a
+2 D
b
-2 D
c
+5 D
d
0.5 D

detailed solution

Correct option is B

U=∞,f=V=−50cmP=1f(m)100f(cm)=−10050=−2D

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