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9 Mar 2010 20:49:32 IST

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SIR IS THE DE BROGLIE LAW APPLICABLE FOR LARGER PARTICLES?IS IT A HYPOTHESIS OR A LAW?

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SIR IS THE DE BROGLIE LAW APPLICABLE FOR LARGER PARTICLES?IS IT A HYPOTHESIS OR A LAW?

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Jitendra Singh Chauhan

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10 Mar 2010 00:19:55 IST

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lambda = h / p
recall that h is Planck's constant

This wavelength is called the de Broglie wavelength. The reason he chose the momentum equation over the energy equation is that it was unclear, with matter, whether E should be total energy, kinetic energy, or total relativistic energy. For photons they are all the same, but not so for matter.

Assuming the momentum relationship, however, allowed the derivation of a similar de Broglie relationship for frequency f using the kinetic energy E_k:

f = E_k / h

it is a hypothesis based on Einstein relationship

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