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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.
Laranjal do Jari | |
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Population | 39805 |
Laranjal do Jari (Portuguese pronunciation: [laɾɐ̃'ʒaw du ʒa'ɾi]) (Jari Orangery) is a municipality located in the west of the state of Amapá in Brazil. It is the only municipality in the west boundaries of Amapá, except for a small part of Vitória do Jari. Its population is 41,688 and its area is 29,699 km², which makes it the largest municipality of Amapá.