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Q: The refractive index of a diamond is 2.42. Then the speed of light in the diamond is :
  • A. 2.48 × 10⁸ m/s
  • B. 1.24 × 10⁸ m/s
  • C. 3 × 10⁸ m/s
  • D. 1.72 × 10⁸ m/s
Correct Answer: Option C -
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Explanations:

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