Physics - Magnetism Question with Solution | TestHub

A proton with a kinetic energy of$2.0 \mathrm{eV}$moves into a region of uniform magnetic field of magnitude$\frac{\pi }{2}\times {10}^{-3} \mathrm{T}$. The angle between the direction of magnetic field and velocity of proton is${60}^{\mathrm{o}}$. The pitch of the helical path taken by the proton is ____$\mathrm{cm}$. (Take, mass of proton$=1.6\times {10}^{-27} \mathrm{kg}$and charge on proton$=1.6\times {10}^{-19} \mathrm{C}$).