AN ELECTRON AND ALPHA PARTICLE HAVE THE SAME de-Broglie WAVE LENGTH ASSOCIATED WITH THEM HOW ARE THEIR KINETIC ENERGIES - Physics - Dual Nature Of Radiation And Matter

Question

AN ELECTRON AND ALPHA PARTICLE HAVE THE SAME de-Broglie WAVE
LENGTH ASSOCIATED WITH THEM HOW ARE THEIR KINETIC ENERGIES RELATED
?

Kartiki · Accepted Answer

since debroglie's wavelength of electron = debroglie wavelength
of alpha particle
momentum of electron= momentum of alpha particle (because,
lambda= planck's const/ momentum)
KE = (momentum)2/ mass and mass of alpha particle
being 4 times mass of an electron, the ratio of KE comes out to be
4:1

AN ELECTRON AND ALPHA PARTICLE HAVE THE SAME de-Broglie WAVE LENGTH ASSOCIATED WITH THEM .HOW ARE THEIR KINETIC ENERGIES RELATED ?