Planck's constant
From: The Columbia Encyclopedia, Sixth Edition
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Date: 2008
Planck's constant , fundamental constant of the quantum theory . It is represented by the letter h and has a value of 6.63 × 10 -34 J-sec. The combination h /2π, denoted by h (called "h-bar" ), occurs frequently.
Author not available, PLANCK'S CONSTANT.,
The Columbia Encyclopedia, Sixth Edition 2008
The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press
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