MCQ
In a cathode ray tube, the screen is coated with fluorescent material:
  • It produces spots on the screen
  • B
    Beam of light is not in a straight line
  • C
    Light deviates away after striking
  • D
    None of these

Answer

Correct option: A.
It produces spots on the screen

When the electron beam strikes the screen coated with fluorescent material the electrical signals appear as visual pattern or spots on the screen.

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