The Nature of Light Quiz
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Questions and Answers

What did most scientists before Isaac Newton think light consisted of?

  • Electromagnetic waves
  • Streams of particles emitted by light sources (correct)
  • Corpuscles emitted by sound sources
  • Waves with wavefront properties

    • When did evidence of wave properties of light begin to be discovered?

  • Around 1700
  • Around 1665 (correct)
  • Around 1600
  • Around 1550

    • Who predicted the existence of electromagnetic waves and calculated their speed of propagation?

  • Isaac Newton
  • Galileo
  • Heinrich Hertz
  • James Clerk Maxwell (correct)

    • What is the dimensionless number that indicates the speed of light in a given medium?

    <p>Index of refraction</p> Signup and view all the answers

    What is the change in direction of propagation of any wave due to a change in its transmission medium called?

    <p>$\text{Refraction}$</p> Signup and view all the answers

    What did most scientists before Isaac Newton think light consisted of?

    <p>Streams of particles emitted by light sources</p> Signup and view all the answers

    When did evidence of wave properties of light begin to be discovered?

    <p>Around 1665</p> Signup and view all the answers

    Who tried (unsuccessfully) to measure the speed of light before Isaac Newton's time?

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

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