Question

why does vacuum is not created in the cathode ray tube?

Answer 1

Answer:

The cathode-ray tube (CRT) is a vacuum tube that contains one or more electron guns and a phosphorescent screen, and is used to display images.

Explanation:

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Answer 2

Hey! mate, HERE IS YOUR ANSWER☺

Cathode rays are so named because they are emitted by the negative electrode, or cathode, in a vacuum tube. To release electrons into thetube, they first must be detached from the atoms of the cathode. The voltage applied between the electrodes accelerates these low mass particles to high velocities.

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