Who discovered the cathode ray?

Electrons were discovered as the constituents of cathode rays. In 1897 British physicist J. J. Thomson showed the rays were composed of a previously unknown negatively charged particle, which was later named the electron. read more

These are used in cathode ray tubes, found in televisions and computer monitors, and in electron microscopes. Crookes tube. The cathode (negative terminal) is on the right. read more

Later and improved cathode ray experiments found that certain types of glass produced a fluorescent glow at the positive end of the tube. William Crookes discovered that a tube coated in a fluorescing material at the positive end, would produce a focused ‘dot’ when rays from the electron gun hit it. read more

J.J. Thomson and the discovery of the electron In the late 1 9 th 19^{\text{th}} 1 9 th 19, start superscript, t, h, end superscript century, physicist J.J. Thomson began experimenting with cathode ray tubes. read more