Question

Which of the following factors increase the magnitude of deflection of cathode rays in discharge tube?

• A. More charge on the particles
• B. Greater interaction with the electric or magnetic field
• C. Lesser mass of the particle
• D. All of the above

Answer 1

The correct option is D All of the above

When the charge is more, than, the presence of magnetic field inside the discharge tube, which is perpendicular to the path of the electron beam, the deflection of the cathode rays (which is also called electron beam) increases. Thus, we can say that interaction of magnetic field with cathode rays increases the deflection of cathode rays. If particles have less mass then the inertia is less, hence, there would be more deflection of cathode rays when they interact with the magnetic field.