Question

Define power of convex lens, what is its units? ?​

Answer 1

Answer:

Convex lens power is defined as the ability of the lens to converge the rays of light which fall on it as shown in the below figure. It can mathematically be defined as P = 1f, where f is the focal length. ... unit of power is the Diopter. It is represented by Capital letter 'P'.

Explanation:

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Answer 2

Answer:

Power of a convex lens is the converging ability of it, and is given as the reciprocal of its focal length. that is, P=f1. Since unit of focal length f is meter, the unit of power is meter−1.