How many photons per second is one Lumen?
sapna , 12 Years ago
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General Physics> How many photons per second is one Lumen?...
1 AnswersApoorva Arora
Thelumen is theSI derived unitofluminous flux, a measure of the total "amount" ofvisible lightemitted by a source. Luminous flux differs frompower in that luminous flux measurements reflect the varying sensitivity of thehuman eyeto differentwavelengthsof light, while radiant flux measurements indicate the total power of all electromagnetic waves emitted, independent of the eye's ability to perceive it. Lumens are related toluxin that one lux is one lumen per square meter.
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