Electromagnetic Wave Basics
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Questions and Answers

What property of light counts the number of waves that pass by a given point in one second?

  • Speed
  • Energy
  • Wavelength
  • Frequency (correct)

    • What is the distance from the peak of one wave to the peak of the next called?

  • Speed
  • Wavelength (correct)
  • Frequency
  • Energy

    • What is the speed of light in free space (in vacuum)?

  • 3*10^6 m/s
  • 3*10^8 m/s (correct)
  • 3*10^5 m/s
  • 3*10^7 m/s

    • What happens to the velocity and wavelength of light when it passes from one medium to another?

    <p>They change</p> Signup and view all the answers

    Which property describes light as a form of energy propagated as electromagnetic waves?

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

    Which part of the eye is responsible for the adaptation of vision from light to dark and vice versa?

    <p>The iris</p> Signup and view all the answers

    What is the function of the pupil in the eye?

    <p>To adapt vision from light to dark and vice versa</p> Signup and view all the answers

    Why does the lens have a smaller focusing power compared to the cornea?

    <p>It is surrounded by substances with similar refractive indexes</p> Signup and view all the answers

    What is the main function of the cornea in vision?

    <p>To focus light onto the retina</p> Signup and view all the answers

    In average light conditions, what is the approximate diameter of the pupil?

    <p>$3$ mm</p> Signup and view all the answers

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