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