Quantum Physics Quiz
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Questions and Answers

What is the definition of a black body?

  • A hypothetical body that absorbs all incident radiation, regardless of frequency (correct)
  • A body that reflects all incident radiation, regardless of frequency
  • A body that emits radiation only at specific frequencies
  • A body that allows some incident radiation to escape

    • Which law describes the total energy radiated per unit surface area of a black body?

  • The Planck Law
  • The Rayleigh-Jeans Law
  • The Wien's Displacement Law
  • The Stefan-Boltzmann Law (correct)

    • What is the realistic example of a black body?

  • A reflective surface with high emissivity
  • A transparent container with no radiation escape
  • A body with selective absorption of incident radiation
  • A small hole cut into a cavity of a hollow container of iron or copper painted inside with lampblack (correct)

    • Which law describes the relationship between the wavelength of the peak emission and the temperature of a black body?

    <p>The Wien's Displacement Law</p> Signup and view all the answers

    What property is valid for radiation corresponding to all wavelengths and all angles of incidence for a black body?

    <p>None of the incident radiation escapes</p> Signup and view all the answers

    Define a black body and its properties as described in the text above.

    <p>A black body is an idealized body that absorbs all incident radiation regardless of frequency and angle of incidence. The property of a black body is valid for radiation corresponding to all wavelengths and all angles of incidence.</p> Signup and view all the answers

    What is the realistic example of a black body as mentioned in the text?

    <p>A small hole cut into a cavity of a hollow container of iron or copper painted inside with lampblack is the realistic example of a black body.</p> Signup and view all the answers

    What are the four laws related to black-body radiation mentioned in the text?

    <p>The Stefan-Boltzmann Law, Wien's Displacement Law, Rayleigh-Jeans Law, and the Planck Law.</p> Signup and view all the answers

    How is a black body defined as per the text?

    <p>A black body is a hypothetical and idealized body that allows the whole of the incident radiation incident on it, regardless of frequency.</p> Signup and view all the answers

    What is the reference book mentioned for the concept of modern physics in the text?

    <p>The reference book mentioned is 'CONCEPTS of MODERN PHYSICS (6th ed) By Arthur Beiser'.</p> Signup and view all the answers

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