Two charged particles 1 and 2 with same velocity, enter a region of uniform magnetic field in a direction perpendicular to the field. If the particles have the same mass, then

Force on charged particle moving in magnetic field is given byF→=QV→×B→. This force is the centripetal force. Therefore 1 must carry negative charge and 2 must carry positive charge.Also trajectories of the particles are circular with radius of curvature γ=VmQBi. Since r1Q2.