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A proton and an electron have same kinet...

A proton and an electron have same kinetic energy. Which one has greater de Broglie wavelength. Justify.

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An electron has the larger wavelength .
Reason `:` de-Broglie wavelength in terms of kinetic energy `lambda = ( h )/( sqrt(2mE _(K)) )prop ( 1)/( sqrt( m))` is for the same kinetic energy.
As an electron has a smaller mass than a proton, an electron has larger de Broglie wavelength than a proton for the same kinetic energy.
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