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Lux vs. Roy - Comparison of sizes
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Lux
Roy

Lux vs Roy

Lux
Roy
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Lux

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The lux (symbol: lx) is the SI derived unit of illuminance, 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. It is analogous to the radiometric unit watt per square metre, but with the power at each wavelength weighted according to the luminosity function, a standardized model of human visual brightness perception.



In English, "lux" is used as both the singular and plural form.The word is derived from the Latin word for "light", lux.

Source: Wikipedia
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Roy

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Roy is a masculine given name and a family surname with varied origin. In Anglo-Norman England, the name derived from the Norman roy, meaning "king", while its Old French cognate, rey or roy (modern roi), likewise gave rise to Roy as a variant in the Francophone world.



In India, Roy is a variant of the surname Rai, likewise meaning "king". It also arose independently in Scotland, an anglicisation from the Scottish Gaelic nickname ruadh, meaning "red".

Source: Wikipedia

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