An electron falls from rest through a vertical distance h in a uniform and vertically upward directed electric field E. The direction of electric…

An electron falls from rest through a vertical distance $\displaystyle h$ in a uniform and vertically upward directed electric field E. The direction of electric field is now reversed, keeping its magnitude the same. A proton is allowed to fall from rest in it through the same vertical distance h . The time of fall of the electron, in comparison to the time of fall of the proton is