Ncert Exercises & Solutions

Two charged particles traverse identical helical paths in a completely opposite sense in a uniform magnetic field \(\overrightarrow{B}=B_0\hat{k}. \)

1.	They have equal \(z-\)components of momenta.
2.	They must have equal charges.
3.	They necessarily represent a particle-antiparticle pair.
4.	The charge to mass ratio satisfy: \(\left( \dfrac{e}{m} \right)_{1} + \left( \dfrac{e}{m} \right)_{2} = 0\)