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Mastering Immersion Methods and the Becke Line Phenomenon
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Mastering Immersion Methods and the Becke Line Phenomenon

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Questions and Answers

Which method is used to measure the refractive index (RI) of a particle immersed in a liquid of different refractive index?

  • Objective Distance
  • Diffraction Halo
  • Oblique Illumination
  • Becke Line (correct)
  • What happens to the Becke Line when the particle has a higher RI index than the medium?

  • Disappears
  • Moves toward the bright center (correct)
  • Moves away from the dark center
  • Stays in the same position
  • What happens to the Becke Line when the particle has a lower RI index than the medium?

  • Moves toward the bright center
  • Disappears
  • Stays in the same position
  • Moves away from the dark center (correct)
  • What is the purpose of Oblique Illumination in RI measurement?

    <p>To create asymmetrical lighting</p> Signup and view all the answers

    What is the name of the contrast that outlines a transparent, irregular particle immersed in a liquid of different refractive index?

    <p>Becke Line</p> Signup and view all the answers

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