Question

Which of the following statement is incorrect about cathode rays?

• A. Cathode rays are consists of electrons
• B. The characteristic of cathode rays do not depend upon the material of electrodes and nature of the gas present in the cathode ray tube.
• C. The deviation of the cathode rays from their path in the presence of electrical or magnetic field depends upon the magnitude of the negative charge on the cathode rays.
• D. The deflection of electrons from its original path increases with the decrease in the voltage across the electrodes

Answer 1

Answer: (D)

The deflection of electrons from its original path increases with the increase in the voltage across the electrodes, or the strength of the magnetic field.