Question

Choose the incorrect statement among the following:

• A. Cathode rays have negative electric charge
• B. Cathode rays can be deflected by magnets
• C. The charge/mass ratio in cathode rays is constant
• D. Cathode rays travel from the anode to the cathode

Answer 1

The correct option is D Cathode rays travel from the anode to the cathode

Cathode rays are basically a stream of electrons. Thus, it can be deflected by magnets as the moving electrons will generate a magnetic field around it.
Since cathode rays are a stream of electrons, the charge/mass ratio for cathode rays is constant.
Cathode rays travel from the cathode to the anode.