Question

what is power of lens? what are its unis​

Answer 1

Answer:

Power of lens is known as the inverse of the focal length of the lens measured in meter(m). S.I unit of power = Dioptre (D) Power of lense = 1/ focal length in meter.

Answer 2

Answer:

Power of lens is defined as the ability of a to converge/diverge a beam of light rays falling on lens. Power of lens is reciprocal of focal length where p is power of lens and f is focal length.

S.I unit of power is dioptre ( D).

Explanation:

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