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Two charged particles traverse identical helical paths in a completely opposite sense in a uniform magnetic field `vec(B)=B_(0)hat(K)`A. They have equal `z-` components of momentaB. They must have equal chargesC. They necessarily represent a partical `-` antipartical paritD. The charge to mass ratio satisfy `:` `(e//m)_(1)+(e//m)_(2)=0` |
Answer» Correct Answer - 4 Since the charged particles traverse identical halical paths in a completely opposite sense in a uniform magentic field `B`, their radii` (r=mv sin theta//eB)` and frequencies `(v=eB//2pim)` must be equal For this `(e//m)_(1)=-(e//m)_(2) or (e//m)_(1)+(e//m)_(2)=0` |
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