Physics JAMB

A person can focus an object only when it lies within 200cm from him. Which spectacles should be used to increase his maximum distance of distinct vision infinity?

A. Convex lens
B. Binoculars
C. Concave lens
D. Plane glasses

Correct Answer:

Option C – Concave lens

Explanation

A person with this condition is said to be short-sighted. Hence, to correct it, a concave lens is used for correction.

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