Question

A neutron, a proton, an electron and an `alpha-`particle enter a region of uniform magnetic field with equal velocities. The magnetic field is perpendicular to the paper and directed into it. The tracks of particles are labeled in Fig. 1.132. The neutron follows the track

A. A
B. B
C. C
D. D

Answer 1

Correct Answer - c
The neutron follows straight path. This is because of zero
force on neutron as it is neutral.