Difference between revisions of "Candela"
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Latest revision as of 06:50, 15 August 2019
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Candela
Description
The candela, symbol cd, is the SI unit of luminous intensity in a given direction. It is defined by taking the fixed numerical value of the luminous efficacy of monochromatic radiation of frequency 540 × 1012 Hz, Kcd, to be 683 when expressed in the unit lm W−1.
Abbreviation: cd
Reference: Bureau International des Poids et Mesures (2019) The International System of Units (SI). 9th edition:117-216 ISBN 978-92-822-2272-0. - »Open Access pdf«
- » Keywords: SI base units
- Base quantities / SI base units
- » time / [second]
- » length / [meter]
- » mass / [kilogram]
- » electric current / [ampere]
- » thermodynamic temperature / [kelvin]
- » amount of substance / [mole]
- » luminous intensity / [candela]
- Fundamental relationships
MitoPedia concepts:
Ergodynamics
