Physics Question from JEE Main 2023 · 6 April, Shift 2

A proton with a kinetic energy of $2.0 \, \text{eV}$ moves into a region of uniform magnetic field of magnitude $\dfrac{\pi}{2} \times 10^{-3} \, \text{T}$. The angle between the direction of magnetic field and velocity of proton is $60^\circ$. The pitch of the helical path taken by the proton is _____ cm.