5. The physical quantity which corresponds to the SI unit 'dioptre' is
A. Focal length of a lens
B. Power of a lens
c. Magnification of a lens.
D. Optical center of a lens.
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The Watt is the SI unit for power for energy consumption. The >SI unit of the power of a lens is given by Dioptre. Candela is the SI unit for the luminous intensity of an object.
ur answer is Power of a lens
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