diffination of power of lenses?
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Power of lens is the ability of the lens to converge the rays of light falling on it.
Definition: The power of a lens is the reciprocal of its focal length in meters. It is represented by the letter P. The power P of a lens of focal length f is given by f = 1/P. The SI unit of power is dioptre .
Definition: The power of a lens is the reciprocal of its focal length in meters. It is represented by the letter P. The power P of a lens of focal length f is given by f = 1/P. The SI unit of power is dioptre .
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The power of a lens is its ability to bend light – the greater the power the greater the refraction of light. The power of a lens is also related to the focal length by the following formula: P=1/f
Power of a lens is measured in Dioptres (D).
Power of a lens is measured in Dioptres (D).
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