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Doesn't de Broglie's wavelength equation imply that there's a frequency for all matter (let's call it de Broglie frequency) and a constant such that [math]E=kf[/math] and [math]k=h [/math]for photons? What about electrons?
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A wave length with a wave number 4x10^8c/m. What is the wave length? - Quora
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