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Laser Knowledge
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Laser Knowledge

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Questions and Answers

Which of the following is a characteristic of lasers?

  • They use mirrors to amplify light (correct)
  • They produce light through chemical reactions
  • They emit light through spontaneous emission
  • They generate light through nuclear reactions

    • What is the main difference between lasers and ordinary light sources?

  • Lasers emit light that is coherent and focused (correct)
  • Lasers emit light in all directions
  • Lasers produce light of different wavelengths
  • Lasers generate light without the use of electricity

    • Which of the following is a key application of lasers?

  • Purifying water
  • Cutting and welding metals (correct)
  • Heating food
  • Generating electricity

    • Which of the following is an application of lasers?

    <p>Performing eye surgery</p> Signup and view all the answers

    What is the main advantage of optical fibers over traditional copper wires for communication?

    <p>Less prone to interference</p> Signup and view all the answers

    Which of the following is a characteristic of lasers?

    <p>Operate at room temperature</p> Signup and view all the answers

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