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Planck constant
Planck's constant (symbol h) is the fundamental proportionality coefficient that relates discrete properties of particles to continuous properties of waves.
Explanation
In SI units, this physical constant is, by definition, exactly
This physical constant is central in quantum mechanics.
Example 1
It is the proportionality factor between the energy quantity E and the frequency v, where holds E = hv.
HistoryThe name of this constant is a tribute to the German physicist Max Planck (1858 - 1947), who chose the letter h for hilfe (help). |