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If an electron and proton have the same de broglie wavelength which particle have greater speed

If an electron and proton have the same de broglie wavelength which particle have greater speed

Grade:12

1 Answers

sonika p
129 Points
4 years ago
de Broglie wavelength lambda = h/mv
for proton, lambda(p) = h/(mp)(vp) where, mp,vp is mass,velocity of proton,
for proton, lambda(e) = h/(me)(ve) where, me,ve is mass,velocity of electron, 
now when wavelengths are same,  velocity is inversely proportional to masses
Thus, ve>vp since, me
thus electron will have grater speed than proton. 

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