Question

An electron and alpha particle have the same de broglie wavelength

Answer 1

Answer:

Explanation:

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