Lecture 1 ~ Notes
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Lecture 1 ~ Notes

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Questions and Answers

What best describes an X-ray?

  • A wave packet of energy called a photon. (correct)
  • A particle emitted from radioactive materials.
  • A type of sound wave used for imaging.
  • A form of visible light used in lasers.
  • How does the energy of a photon change with frequency?

  • Energy remains constant regardless of frequency.
  • Lower frequency leads to higher energy.
  • Higher frequency results in lower energy.
  • Higher frequency equates to greater energy. (correct)
  • Which of the following statements about electromagnetic radiation is accurate?

  • Electromagnetic radiation does not involve electric and magnetic fields.
  • They always move in the same direction as the wave.
  • Their interaction with matter is independent of frequency and wavelength.
  • The fields vibrate at right angles to each other. (correct)
  • What distinguishes X-rays from non-ionizing radiation?

    <p>X-rays are a type of ionizing radiation.</p> Signup and view all the answers

    Which statement is true about waves?

    <p>Waves carry energy from one point to another.</p> Signup and view all the answers

    Study Notes

    X-Rays

    • X-rays are packets of energy called photons
    • X-rays are created at the atomic level due to interactions between electrons and tungsten atoms within an anode
    • Electromagnetic radiation is composed of electric and magnetic fields that vibrate at right angles to each other
    • The way electromagnetic waves interact with matter, and the energy of a photon, depend on frequency and wavelength
    • High frequency = short wavelength = high energy
    • Low frequency = long wavelength = low energy
    • The energy of a photon depends on its frequency; higher frequency means greater energy
    • UV, X-rays, and gamma rays are ionizing radiation
    • Ionizing radiation begins at the middle of the UV wavelength range
    • Radiation can be described as either particles or waves
    • Waves are continuous disturbances in a medium, carrying energy from one point to another in straight lines
    • Waves can travel through a vacuum or matter

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    Description

    This quiz explores the fundamentals of X-rays and electromagnetic radiation. It covers the properties of photons, the relationship between frequency and energy, and the nature of ionizing radiation. Test your knowledge on how X-rays are generated and their interactions with matter.

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