Physics - Magnetism Question with Solution | TestHub

Frequency$\mathrm{f}=\frac{\mathrm{Bq}}{2\mathrm{\pi m}}$

As proton, electron,$\mathrm{L}{\mathrm{i}}^{+}$and${\mathrm{He}}^{+}$have same charge in magnitude and since magnetic field is also constant.

So,$\mathrm{f}\propto \frac{1}{\mathrm{m}}$

Among the given charged particles,${\mathrm{L}\mathrm{i}}^{+}$has highest mass, therefore it will have minimum frequency.