what is power of lens ? what does its -ve and +ve sign indicate?
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The power of a lens is the ability to bend light.
power of a lens is measured in dioptre .negative sign indicate myopia (for nearsightedness )negative sign indicates hyperopia for farsighredness)..
hope it help u...
power of a lens is measured in dioptre .negative sign indicate myopia (for nearsightedness )negative sign indicates hyperopia for farsighredness)..
hope it help u...
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