A cyclotron is used to accelerate protons. If the operating magnetic field is 1.0 T and the radius of the cyclotron 'dees' is 60 cm, the kinetic energy of the accelerated protons in MeV will be:
[use mp=1.6×10⁻²⁷ kg,e=1.6×10⁻¹⁹C ]
(A) 12
(B) 18
(C) 16
