Q4.1Multiple choice
Two charged particles traverse identical helical paths in a completely opposite sense in a uniform magnetic field B = B0 k̂ .
- (a)They have equal z-components of momenta.
- (b)They must have equal charges.
- (c)They necessarily represent a particle-antiparticle pair. e e
- (d)The charge to mass ratio satisfy : + = 0 . m 1 m 2