what is meant by power of a lens? define its SI unit
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SI unit is diopters and the definition is the ability of the lens to converge or diverge
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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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