Magnetism questions

Early researchers found that an electric or magnetic field could split radioactive emissions into three types of beams as illustrated below. Which of the following statements accurately describes these characteristic radioactive decay products?

(Choice A)
Particle B represents a neutron since there is no deflection in its path due to its larger mass.
(Choice B)
Particle A represents a proton because a particle with a positive charge would have such a characteristic path.
(Choice C)
Particle C represents a positron because it experiences the most deflection from passing through the magnetic field.
(Choice D)
Particle A represents an alpha particle because of the upward and smaller deflection than that of particle C.

MCAT

Course: MCAT > Unit 8

Problem