A proton is accelerated through a potential difference of 1V. Its kinetic energy isa) 1 eVb) Zeroc) 2 eVd) 4 eV

If a proton is accelerated from rest through a potential difference of 30 kV, it is given an energy of 30 keV (30,000 eV) and it can break up as many as 6000 of these molecules (30,000 eV ÷ 5 eV per molecule= 6000 molecules).