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Questions and Answers

What is the speed of light in a vacuum?

  • 200,000,000 meters per second
  • 299,792,458 meters per second (correct)
  • 250,000,000 meters per second
  • 300,000,000 meters per second
  • What is the primary source of natural light on Earth?

  • Bioluminescent organisms
  • Stars other than the Sun
  • The Sun (correct)
  • The Moon
  • What determines the color of visible light?

  • Wavelength (correct)
  • Intensity
  • Amplitude
  • Frequency
  • What is the speed of light in a vacuum?

    <p>299,792,458 meters per second</p> Signup and view all the answers

    Who was the first person to accurately measure the speed of light?

    <p>Ole Rømer</p> Signup and view all the answers

    What is the approximate wavelength range of visible light?

    <p>400 to 700 nanometers</p> Signup and view all the answers

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