Please explain discovery of cathode rays in a simple way....????
Answers
In 1897, British physicist J. J. Thomson showed that cathode rays were composed of a previously unknown negatively charged particle, which was later named the electron. Cathode ray tubes (CRTs) use a focused beam of electrons deflected by electric or magnetic fields to create the image on a television screen.
Discovery of Cathode Rays:
A cathode ray tube aims the ray at a point on its screen.
They were first observed in 1869 by German physicist Johann Hittorf, and were named in 1876 by Eugen Goldstein Kathodenstrahlen, or cathode rays.
Electrons were discovered as the constituents of cathode rays in 1897 by British physicist J. J.
Cathode rays are originating from cathode as cathode is negatively charged.
These rays then hit the gas sample inside the tube and ionize it.
The electrons ejected from the ionisation of the gas travel towards anode.
These rays are actually electrons produced from the ionisation of the gas inside the tube.