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What is the SI Unit LUX?

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What is the SI Unit LUX?
posted Apr 16, 2016 by Danial Rotwaski

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1 Answer

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The lux (symbol: lx) is the SI unit of illuminance and luminous emittance, measuring luminous flux per unit area. It is equal to one lumen per square metre. In photometry, this is used as a measure of the intensity, as perceived by the human eye, of light that hits or passes through a surface.

answer Apr 18, 2016 by Shivaranjini