Question
Whichofthefollowingisnotapartofa CRT?
Solution
The cathode ray tube (CRT) is a vacuum tube containing an electron gun (a source of electrons or electron emitter) and a fluorescent screen used to view images. Colour tubesusethreedifferentphosphorswhichemit red, green, and bluelightrespectively. They are packed together in stripes (as in aperture grille designs)orclusterscalled"triads"(asinshadow mask CRTs).
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