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IEVref:113-01-34ID:
Language:enStatus: Standard
Term: speed of light
Synonym1: light speed
[Preferred]
Synonym2: speed of light in vacuum
[Preferred]
Synonym3: luminal speed
[Preferred]
Symbol: c0
Definition: fundamental physical constant the value of which has been fixed at exactly 299 792 458 m/s with the definition of the metre in SI

NOTE 1 Any electromagnetic wave propagates in vacuum with the speed of light.

NOTE 2 The term "luminal speed" is sometimes used in relativity.


Publication date:2011-04
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Internal notes:2017-06-02: Cleanup - Remove Attached Image 113-01-34en.gif
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