If a proton and electron have the same de Broglie wavelength, then

Options

A. kinetic energy of electron `lt ` kinetic energy of proton
B. kinetic energy of electron = kinetic energy of proton
C. momentum of electron = momentum of proton
D. momentum of electron `lt ` momentum of proton

Answer

C

Explanation

de Broglie wavelength `lamda = h/p`
Where , p is the momentum of the particle
For electron `lamda_(e) =h/(p_e) ,` For proton , `lamd_(p) = (h) /p_p`
As `lamda_e = lamda_p ` (Given )
`implies p_e = P_p`
or Momentum of electron = Momentum of proton