1.

same plane.Define power' of a convex lens. What is its unit ?

Answer»

Alens' opticalpower, also called dioptre, is the reciprocal of focal length expressed in metres. Dioptres also define magnifyingpower.Convex lenses, orconverging lenses, would have positive values, as they magnify objects

Unit is dioptre

Power of a convex lens is equal to inverse of its focal distance



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