Optical Fibers in Communication
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Questions and Answers

What is the principle behind the transmission of light waves in an optical fiber?

  • Refraction into a rarer medium
  • Absorption by the fiber material
  • Reflection into a denser medium
  • Total internal reflection (correct)

    • What is the advantage of using optical fibers over conventional coaxial cables for communication?

  • Lower cost of installation
  • Ability to carry radio waves
  • Considerably less signal strength loss (correct)
  • Higher radio wave frequency

    • What type of waves are used as carrier waves in optical fiber communication?

  • Radio waves
  • Light waves (correct)
  • Micro waves
  • X-rays

    • What happens when a ray of light travels from denser to a rarer medium at an angle greater than the critical angle?

    <p>Total internal reflection occurs</p> Signup and view all the answers

    What has improved the speed of communication in optical fiber communication?

    <p>Use of light waves instead of radio and microwave</p> Signup and view all the answers

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