Question

If an electron and proton when in motion have the same wavelength associated with each of them, which would be moving faster and why ?

Answer 1

For electron and proton, h and `lambda` are constants. Therefore, `m_(e)v_(e)=m_(p)v_(p) or (v_(e))/(v_(p))=m_(p)//m_(e)`. Since mass of proton is more than that of electron, velocity of the electron will be more. Therefore, electron 0will be moving faster than proton.