Definition:Luminous Intensity

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Luminous intensity is a physical property of matter that quantifies the wavelength-weighted power emitted by a source of light in a particular direction per unit solid angle


The usual symbol used to denote luminous intensity is $I$.


Luminous intensity is generally considered as one of the fundamental dimensions of physics.

In dimensional analysis it is usually assigned the symbol $\mathsf J$.

Also see

  • Results about luminous intensity can be found here.