Visible Light & Electromagnetic Radiation Quiz
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Questions and Answers

What is the speed of light in vacuum?

  • 294957 km/s
  • 299792458 m/s (correct)
  • 310000000 m/s
  • 300000000 m/s

    • Which wavelengths are usually defined as visible light?

  • 200–500 nanometres (nm)
  • 100–1000 nanometres (nm)
  • 400–700 nanometres (nm) (correct)
  • 600–800 nanometres (nm)

    • What are the primary properties of light?

  • Energy, velocity, frequency, and amplitude
  • Intensity, propagation direction, frequency or wavelength spectrum, and polarization (correct)
  • Refraction, diffraction, reflection, and absorption
  • Color, speed, frequency, and amplitude

    • What are the massless elementary particles through which visible light propagates?

    <p>Photons</p> Signup and view all the answers

    In physics, what may the term 'light' refer to?

    <p>Electromagnetic radiation of any wavelength, whether visible or not</p> Signup and view all the answers

    What is the speed of light in vacuum?

    <p>299,792,458 m/s</p> Signup and view all the answers

    Which wavelengths are usually defined as visible light?

    <p>400–700 nanometres (nm)</p> Signup and view all the answers

    What are the primary properties of light?

    <p>Intensity, propagation direction, frequency or wavelength spectrum, and polarization</p> Signup and view all the answers

    What are photons?

    <p>Massless elementary particles representing the quanta of electromagnetic field</p> Signup and view all the answers

    In physics, what does the term 'light' refer to?

    <p>Electromagnetic radiation of any wavelength, whether visible or not</p> Signup and view all the answers

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