Cathode Ray Tubes and Oscilloscopes
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Questions and Answers

Which of the following is a device that uses a cathode ray tube?

  • Digital camera
  • Television (correct)
  • Computer
  • Smartphone

    • What is the main purpose of a cathode ray oscilloscope?

  • To measure voltage (correct)
  • To play video games
  • To transmit radio signals
  • To capture photographs

    • Which of the following is true about cathode ray tubes?

  • They are used for sound amplification
  • They are made of glass
  • They emit visible light
  • They use electron beams (correct)

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