Q. The unit of luminous flux is _

A
Lux
B
Candela
C
Weber
D
Lumen
Solution:
  • Luminous Flux is energy per unit time that is radiated from a source over visible wavelengths.
  • The SI unit of luminous flux is the lumen (lm).
  • One lumen is defined as the luminous flux of light produced by a light source that emits 1 cd of luminous intensity over a solid angle of 1 sr.
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