Understanding Visible Light
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Questions and Answers

What is the speed of light in vacuum?

  • 294957 km/s
  • 300000000 m/s
  • 299792458 m/s (correct)
  • 310000000 m/s
  • Which range of wavelengths is usually defined as visible light?

  • 200–500 nanometres (nm)
  • 100–300 nanometres (nm)
  • 400–700 nanometres (nm) (correct)
  • 800–1000 nanometres (nm)
  • What are the primary properties of light?

  • Intensity, propagation direction, frequency or wavelength spectrum, and polarization (correct)
  • Velocity, amplitude, frequency, and phase
  • Frequency, wavelength, speed, and energy
  • Refraction, diffraction, interference, and polarization
  • What represents the quanta of electromagnetic field for visible light?

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

    What is the study of light known as?

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

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