📊 Physics
Q. The refractive index of vacuum is:
  • (A) 0
  • (B) 0.5
  • (C) 1
  • (D) Infinity
✅ Correct Answer: (C) 1

Explanation: Vacuum is taken as the reference medium and has a refractive index equal to 1.

Explanation by: Jyoti
Vacuum is taken as the reference medium and has a refractive index equal to 1.

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