Physics - Magnetism Question with Solution | TestHub

$\begin{array}{l}\text{Cyclotron frequency},f=\frac{\mathrm{e}B}{2\pi m}\\ =\frac{1.6\times {10}^{-19}\times 1}{2\times 3.14\times 9.1\times {10}^{-31}}\\ =28\text{G}\text{H}\text{z}\end{array}$