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Planck constant
A constant equal to 6.6256 × 10-34 joule second (6.6256 × 10-27 erg second). It scales the energy of electromagnetic radiation of frequency f so that the radiation appears only in quanta nhf, where n is an integer. Planck's constant was first introduced in 1900, in Planck's theory of blackbody radiation, and subsequently appeared in Einstein's 1905 theory of photons.
Related categories
• ATOMIC AND NUCLEAR PHYSICS
• PARTICLE PHYSICS
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