A beam of ions, each carrying charge q q\,q and having mass mmm, enters a uniform magnetic field of flux density B B\,B at right angles. The ions are deflected into a circular path of radius RRR.
Which of the following sets of quantities is sufficient to determine the magnitude of the orbital angular momentum of an ion about the centre of its circular path?
BBB, mmm and RRR
qqq, mmm and RRR
BBB, qqq and RRR
BBB, qqq and mmm
