Luminescence Unveiled
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Questions and Answers

Which type of luminescence involves the emission of light without producing heat?

  • Fluorescence
  • Phosphorescence
  • Chemiluminescence (correct)
  • Bioluminescence

    • Which type of luminescence involves the emission of light when the excited energy returns to the ground after absorbing light?

  • Bioluminescence
  • Fluorescence (correct)
  • Chemiluminescence
  • Phosphorescence

    • Which type of luminescence involves the atom being excited at a triplet stage and returning to the ground state after absorbing light?

  • Fluorescence
  • Chemiluminescence
  • Phosphorescence (correct)
  • Bioluminescence

    • Which type of luminescence involves the excited atom emitting light after returning to the ground state and is caused by a chemical reaction?

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

    Which type of luminescence involves biomolecules and is similar to chemiluminescence?

    <p>Bioluminescence (D)</p> Signup and view all the answers

    What is the inner filter effect?

    <p>The nonlinear relationship between fluorescence intensity and concentration (C)</p> Signup and view all the answers

    What advantage does fluorometry have over spectrophotometry?

    <p>Higher sensitivity (D)</p> Signup and view all the answers

    What is the most commonly used excitation source in luminescence studies?

    <p>Xenon-Arc Lamp (D)</p> Signup and view all the answers

    What is arc wandering?

    <p>Movement of the attachment point of the arc on the cathode surface (D)</p> Signup and view all the answers

    What is arc fluttering?

    <p>Rapid lateral displacement of the arc (C)</p> Signup and view all the answers

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