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Write the expression for de-Broglie wave...

Write the expression for de-Broglie wavelength of electrons interms of electric potential and explain the terms used.

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`lambda = (h)/(sqrt(2m e V))`
Where, h is the plank.s constant `" " lambda` is the de-Broglie wavelength
m is the mass of the electron `" " V` is the electric potential
e is the charge on the electron
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