A particle having charge of $1 \,\,C$, mass $1 \,\,kg$ and speed $1 \,\,m/s$ enters a uniform magnetic field, having magnetic induction of $1$ $T,$ at an angle $\theta = 30^o$ between velocity vector and magnetic induction. The pitch of its helical path is (in meters)
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Pitch $=V \cos \theta \times T=V \cos \theta \times \frac{2 \pi m}{q B}=\sqrt{3} \pi$
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