Candela (cd) 4


Candela (cd) 4 :

A unit of luminous intensity equivalent to that emitted from a blackbody having an area of 1/600,000 m2 at the temperature at which platinum, under the pressure of 101,325 newtons/m2, solidifies (20460K). Note: The term candela officially replaced candle by act of the US Congress in 1964

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