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abstraction > mathematical concept > unit > luminous intensity unit

luminous intensity unit
subject			fact

luminous intensity unit	is a unit of luminous intensity
	is a kind of unit
unit	has historical origin
	represents

Kinds of luminous intensity unit :

• candela (8 facts) (cd) - The SI unit of luminous intensity, defined as "the luminous intensity, in the perpendicular direction, of a surface of 1/600000 square meter of a blackbody at the temperature of freezing platinum under a pressure of 101325 newtons per square meter.", the luminous intensity in a given direction, of a source that emits monochromatic radiation of frequency 540 × 10¹² hertz and that has a radiant intensity in that direction of 1/683 watt per steradian