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“candela”
candela
The base unit of luminous intensity in the International System of Units that is equal to the luminous intensity in a given direction of a source which emits monochromatic radiation of frequency and has a radiant intensity in that direction of watt per unit solid angle; abbreviation cd and also called a candle.
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“candela”
An SI unit of luminous intensity: The candela replaced the old units of candle and standard candle.
Candela measures the brightness of a light itself rather than the amount of light falling on an object, which iC called "illuminance" and measured in "lux".
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Measurements and Mathematics Terms
(page 4)