MPSC PYQScienceLightenglish

47) What would be the power of a lens if a person can't see distant objects at more than 4 m distance ? 1) -2 D 2) -0.25 D 3) 1 D 4) 1.25 D

A.-2 D
B.-0.25 D
C.1 D
D.1.25 D

Correct answer: B

Source paper

Science: Light

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