A proton of eneergy 1 MeV described a circuler path in a plane at right

A proton of eneergy 1 MeV described a circuler path in a plane at right angles to be a uniform magnetic field of induction `2pi xx 10^(-4)T`. The mass of the proton is `1.7 xx 10^(-27)kg`. The cyclotron frequency of the proton is very nearly equal to