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Planck constant
Planck constant (symbol h) A constant that relates the energy of a photon to its frequency. It has the value 6.626 069 × 10-34 J s. It is named after the German physicist Max Karl Ernst Ludwig Planck (1858–1947).
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"Planck constant." A Dictionary of Astronomy. 1997. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "Planck constant." A Dictionary of Astronomy. 1997. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O80-Planckconstant.html "Planck constant." A Dictionary of Astronomy. 1997. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-Planckconstant.html |
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Planck's constant
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. |
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Cite this article
"Planck's constant." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "Planck's constant." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1E1-Plancksc.html "Planck's constant." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-Plancksc.html |
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