Unités Physiques

Mise à jour 2023-11-22 15:29:08

Unités Physiques Internationales

1

ID
UnitRef
87
BaseQuantity
time
Symbole
s
SymbolFr
s
SymbolCn
SymbolPlural
s
SymbolFrPlural
s
SymbolCnPlural
s
Unit
second
UnitFr
seconde
UnitCn
Value
1
Category
PHYSICAL
Notes
SI base units: The second is the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.

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