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0 votes
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in Physics by (37.5k points)

A short sighted person uses a spectacle of power -0.4 D to see very distant objects. How far can he see without using spectacle ? 

(1) 40m 

(2) 100m 

(3) 2.5m 

(4) 10m

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1 Answer

+1 vote
by (39.7k points)

Correct option is (3) 2.5m 

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