Question

Explain how cathode rays are formed from a gas taken discharge tube

Answer 1

Because of photoelectric effect, emission of electrons takes place.

Answer 2

Answer:

Explanation:

This happens because the gas taken in the discharge tube consists of atoms, and all the atoms contain electrons. When high electrical voltage is passed, the electrical energy excites and pushes out some of the electrons from the atoms of the gas. These fast-moving electrons form the cathode rays