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de Broglie wavelength

   Also found in: Wikipedia 0.02 sec.
de Broglie wavelength [də¦brō¦glē ′wāv‚leŋkth]
(quantum mechanics)
The wavelength of the wave associated with a particle as given by the de Broglie relation.

De Broglie wavelength

The wavelength γ = h/p associated with a beam of particles (or with a single particle) of momentum p; h = 6.626 × 1034 joule-second is Planck's constant. The same formula gives the momentum of an individual photon associated with a light wave of wavelength γ. This formula, along with the profound proposition that all matter has wavelike properties, was first put forth by Louis de Broglie in 1924, and is fundamental to the modern theory of matter and its interaction with electromagnetic radiation. See Quantum mechanics



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Photoelectric effect; Bohr's theory of hydrogen-like atoms; Characteristic and continuous X-rays, Moseley's law; de Broglie wavelength of matter waves.
Examine these factors and see they contain the de Broglie wavelength that underlies QM, and relativistic energy and momentum that is the mass increase of special relativity.
Moreover, the use of sodium allows additional precision, since sodium atoms are heavier than helium atoms and therefore have a shorter de Broglie wavelength.
 
 
 
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