The power of a lens is 5 dioptre and its focal length is 0.2m.What type of lens is it?
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Answer:
The lens is a Convex lens
Explanation:
Power of a convex lens is always positive ( +ve )
Power of a concave lens is always negative ( -ve )
Since the power is 5 Dioptre ( which is positive ) the lens is to be Convex.
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