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Q: Which of the following does NOT contribute to the sparking of diamonds?
  • A. Total internal reflection
  • B. High refractive index of diamond
  • C. Dispersion
  • D. Low refractive index of diamond
Correct Answer: Option D - Diamond low refractive index does not contribute to the sparking of diamonds.
D. Diamond low refractive index does not contribute to the sparking of diamonds.

Explanations:

Diamond low refractive index does not contribute to the sparking of diamonds.