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Questions and Answers
What is the purpose of the cathode ray tube in this experiment?
What is the purpose of the cathode ray tube in this experiment?
- To determine the amplitude, periodic time, and frequency of given waves (correct)
- To create a vacuum for studying electron behavior
- To emit a beam of electrons for visual observation
- To measure the pressure of the gas inside the tube
What is the pressure of the gas inside the cathode ray tube?
What is the pressure of the gas inside the cathode ray tube?
- 760 mmHg
- 0.01 mmHg (correct)
- 0.1 mmHg
- 1 atm
How is the bright spot on the fluorescent screen created?
How is the bright spot on the fluorescent screen created?
- By applying a high voltage to the screen
- A beam of electrons controlled and focused by the electron gun (correct)
- By heating the fluorescent material with a laser
- By exposing the screen to ultraviolet light
What determines the color of the light emitted by the fluorescent material?
What determines the color of the light emitted by the fluorescent material?
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What is the function of the deflecting system in the cathode ray tube?
What is the function of the deflecting system in the cathode ray tube?
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