simpatique
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- Apr 30, 2010
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Flux is defined as flow per unit area , Exitance is M Lumens per square meters . Since the question is about ratio ( unitless ) A and D are impossible . Between transmitance , transmitance (rate) sounds like the best answer However ZEN MASTER once said : when the light leave a room the room gets dark and when the light returns to the room luminates again ! Rate of light / no light. Luminous (lumiere) rate light to no light is the correct answer.
******** ? well , maybe
******** ? well , maybe