PRAYASH KAFLE

Cathode rays are negatively charged streams of particles arising from the cathode of an electric discharge tube at low pressure and high electric potential.

Any two properties of cathode rays are:

1. They are negatively charged particles so, they suffer deflection in electric and magnetic fields.
2. They travel with 1/10 of the velocity of light.

Following are the significance of Millikan's oil drop experiment:

1. It verifies that electronic charge is the smallest possible unit of charge.
2. It helps to calculate the electronic charge by using the value of the specific charge of electron (e/m).