Shedding Light on Physics
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Questions and Answers

Which of the following is true about light?

  • Light travels faster in a vacuum than in air
  • Light travels in straight lines (correct)
  • Light travels faster in air than in water
  • Light can only travel in a vacuum
  • What is the speed of light?

  • 3,000 km/s
  • 3,000,000 km/s
  • 300 km/s
  • 300,000 km/s (correct)
  • Use of light

    What is the difference between reflection and refraction?

    <p>Refraction is the bending of light when it passes through a medium</p> Signup and view all the answers

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