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Far point of a person is 5 m. In order to have normal vision what kind of spectacles should he use ? 

A) Concave lens with focal length 5 m 

B) Concave lens with focal length 10 m 

C) Convex lens with focal length 5 m 

D) Convex lens with focal length 2.5 m

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1 Answer

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by (30.1k points)

A) Concave lens with focal length 5 m

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