The De Broglie wavelength was derived like this by our physics teacher.(adsbygoogle = window.adsbygoogle || []).push({});

E=hf v=fλ E=mc^2

so

hf=mc^2

hv=λmc^2

Then the WRONG BIT

h=λmv

h=λρ

λ=h/ρ

But that only works for light (when c=v). There must be a correct way of deriving it for electrons etc. We are expected to use this for electrons.

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# Derivation of De Broglie wavelength

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