what is meant by the power of lens ? what is it's SI unit? name the type of lens whose power is positive
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The power of a lens is defined as the reciprocal of its focal length.Its SI unit is dioptre. In convex lens power is positive.
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the power of lens is the reciprocal of its focal length in meters.
P=1/F
The SI unit of power is Dioptre
Convex lens is the lens in which the power is positive
P=1/F
The SI unit of power is Dioptre
Convex lens is the lens in which the power is positive
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