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Planck's constant
- basic physical constant: a basic physical constant that is equal to the energy of a photon divided by its frequency, with an approximate value of 6.6261 x 10-34 joule-seconds.
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  • Planck constant - Wikipedia, the free encyclopedia

    An initial measurement of Planck’s constant using the NPL Mark II watt balance". Metrologia 44: 427–440. doi: 10.1088/0026-1394/44/6/001. Retrieved on 2007-11-25.

  • Planck's Constant

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  • Planck's Constant and the Energy of a Photon

    Planck's Constant and the Energy of a Photon In 1900, Max Planck was working on the problem of how the radiation an object emits is related to its temperature.

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