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Physics: Electromagnetic Waves and Infrared Radiation Quiz
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Physics: Electromagnetic Waves and Infrared Radiation Quiz

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@HealthyBandoneon

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Questions and Answers

What gives rise to an electromagnetic wave?

  • Time varying electric field only
  • Static electric field
  • Time varying magnetic field only
  • Mutually perpendicular time varying electric and magnetic fields (correct)

    • Which of the following has the highest frequency?

  • Ultra-Violet rays
  • Infrared radiation
  • Gamma rays (correct)
  • X-rays

    • What is a characteristic of electromagnetic waves?

  • They are longitudinal in nature
  • They require a material medium for propagation
  • They are transverse in nature (correct)
  • They propagate at a speed lower than light

    • Which application of X-rays involves detecting explosives and gold?

    <p>Customs department detecting explosives and gold</p> Signup and view all the answers

    How do infrared rays from the sun contribute to sustaining life on earth?

    <p>By keeping the earth warm</p> Signup and view all the answers

    Which type of rays are used in surgery for detecting fractures and diseased organs?

    <p>X-rays</p> Signup and view all the answers

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