Which of the following is/are not affected by a magnetic field? I. Neutrons II. Cathode rays III. Alpha particles

Which of the following is/are not affected by a magnetic field?
I. Neutrons
II. Cathode rays
III. Alpha particles

Answer Details

Neutrons are not affected by a magnetic field because they have no electrical charge. Cathode rays and Alpha particles are charged and can be deflected by a magnetic field. Therefore, the answer is (I) only.