Question

what are rays cathode ​

Answer 1

Answer:

Cathode rays (electron beam or e-beam) are streams of electrons observed in discharge tubes. ... Thomson showed that cathode rays were composed of a previously unknown negatively charged particle, which was later named the electron.

Explanation:

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Answer 2

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Cathode rays are streams of electrons observed in vacuum tubes (also called an electron beam or an e-beam). If an evacuated glass tube is fitted with two electrodes and a voltage is applied, it is observed that the glass opposite the negative electrode glows from the electrons emitted from the cathode.