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

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

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

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

<p>Galileo (C)</p> Signup and view all the answers

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