A proton and an electron have the same de Broglie wavelength. If K p and K e be the kinetic energies of proton and electron respectively, then choose the correct relation :

Question

A proton and an electron have the same de Broglie wavelength. If K p ​ and K e ​ be the kinetic energies of proton and electron respectively, then choose the correct relation :

TestHub · Accepted Answer

De Broglie wavelength of proton \& electron = λ ​ ∵ λ = p h ​ ∴ p proton ​ = p electron ​ ∵ KE = 2 m p 2 ​ ∴ KE proton ​ < KE electron ​ [ K p ​ < K c ​ ] ​

Physics - Modern Physics Question with Solution | TestHub

Options:

Doubts & Discussion