A Free Electron and a Free Proton Have the Same

Multiple Choice

A free electron and a free proton have the same momentum.This means that, compared to the matter wave associated with the proton, the matter wave associated with the electron has:

A) a shorter wavelength and a greater frequency
B) a longer wavelength and a greater frequency
C) the same wavelength and the same frequency
D) the same wavelength and a greater frequency
E) the same wavelength and a smaller frequency