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Grade 12Modern Physics

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

Profile image of muzhar aly
9 Years agoGrade 12
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1 Answer

Profile image of sonika p
ApprovedApproved Tutor Answer9 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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