Define power of lens and state its units.

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Solution

Power of lens is the ability of the lens to converge the rays of light falling on it.It can also be defined as P=1/f where f is the focal length. S.I. unit of power is D(Dioptre).
It is represented by letter 'P'.

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Define power of lens and state its units.

Power of lens is the ability of the lens to converge the rays of light falling on it.It can also be defined as P=1/f where f is the focal length. S.I. unit of power is D(Dioptre).It is represented by letter 'P'.

Power of lens is the ability of the lens to converge the rays of light falling on it.It can also be defined as P=1/f where f is the focal length. S.I. unit of power is D(Dioptre).
It is represented by letter 'P'.