what do you mean by power of lens ? Explain in proper manner
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power of lat of its focal length in meters it. ... day after is a power of alens whose focal length is 1 meter. thepower of a convex lens is positive and the power of a concave lens is negative power. of a combination oflenses when a number of thin lenses are placed in contact with one another.
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Optical power (also referred to as dioptric power, refractive power, focusing power, or convergence power) is the degree to which a lens, mirror, or other optical system converges or diverges light. It is equal to the reciprocal of the focal length of the device: P = 1/f.[1] High optical power corresponds to short focal length. The SI unit for optical power is the inverse metre (m−1), which is commonly called the dioptre.
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Power of lens is the ability of a lens to converge or diverge (P).
It's si unit is dioptre
It's si unit is dioptre
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