FAQ

What is the Luminous Flux Incident upon Object?
Luminous Flux Incident upon Object is defined as the total luminous flux incident on a surface, per unit area. Luminous Flux Incident upon Object is usually measured using the Lumen for Luminous Flux. Note that the value of Luminous Flux Incident upon Object is always positive.
Can the Luminous Flux Incident upon Object be negative?
No, the Luminous Flux Incident upon Object, measured in Luminous Flux cannot be negative.
What unit is used to measure Luminous Flux Incident upon Object?
Luminous Flux Incident upon Object is usually measured using the Lumen[lm] for Luminous Flux. Candela Steradian[lm], Lux Square Meter[lm] are the few other units in which Luminous Flux Incident upon Object can be measured.
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