what is lumen?plazzzzzzzzzzzzzzzzzzzzzźzzzzzzzzz
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Explanation:
The lumen (symbol: lm) is the SI derived unit of luminous flux, a measure of the total quantity of visible light emitted by a source per unit of time. ... Lumens are related to lux in that one lux is one lumen per square meter. The lumen is defined in relation to the candela as. 1 lm = 1 cd ⋅ sr.
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hey....
Explanation:
Lumen is the SI unit of luminous flux , equal to the amount of light emitted per second in a unit solid angle of one steradian from of uniform source of one candela ..
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