Physics
Which of the following is not a part of a CRT ?
Phosphor screen
Shadow mask
Electron gun
Gas plasma
Gas plasma
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 tubes use three different phosphors which emit red, green, and blue light respectively. They are packed together in stripes (as in aperture grille designs) or clusters called โtriadsโ (as in shadow mask CRTs).
Gas plasma 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 tubes use three different phosphors which emit red, green, and blue light respectively. They are packed together in stripes (as in aperture grille designs) or clusters called โtriadsโ (as in shadow mask CRTs).
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