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Questions and Answers
What is the purpose of the hot cathode in an X-ray tube?
What is the purpose of the hot cathode in an X-ray tube?
- Produce electrons (correct)
- Produce X-rays directly
- Absorb excess energy
- Ensure vacuum
Why is the vacuum important in an X-ray tube?
Why is the vacuum important in an X-ray tube?
- To reduce X-ray production
- To slow down electrons
- To ensure electrons are not slowed down (correct)
- To speed up the electrons
What is the Photoelectric effect?
What is the Photoelectric effect?
- Production of photons
- Ionization of X-rays
- Emission of electrons from a metal surface due to suitable electromagnetic radiation (correct)
- Generation of kinetic energy
Which statement correctly describes a photon?
Which statement correctly describes a photon?
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What happens to the energy of a photon that exceeds the work function when it strikes a metal?
What happens to the energy of a photon that exceeds the work function when it strikes a metal?
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What does the threshold frequency signify in the photoelectric effect?
What does the threshold frequency signify in the photoelectric effect?
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Which component is responsible for producing X-rays in an X-ray tube?
Which component is responsible for producing X-rays in an X-ray tube?
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What is the charge of a single electron?
What is the charge of a single electron?
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What is the minimum energy required to remove the loosest electrons from a metal's surface called?
What is the minimum energy required to remove the loosest electrons from a metal's surface called?
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Which of the following best describes what happens when an electron moves through an electric field?
Which of the following best describes what happens when an electron moves through an electric field?
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What is thermionic emission?
What is thermionic emission?
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