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Quote: Planck empirically determined the equation for black-body radiation and found a simple derivation under the assumption that harmonic oscillators have discrete energy levels
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Planck studied [black-body radiation]. He first determined the answer … then by fiddling around he found a simple … can take up energies only .h- bar.omega. at … [p. 41-7] This, then, was the first quantum-mechanical formula … This expression should, of course, approach kT [as in Rayleigh's law] as .omega.->0 or as T->.infinity.. Google-1 Google-2
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Quote: in the limit, Planck's equation for black-body radiation yields the classical equation, Rayleigh's law
Topic: light (37 items)