📊 Physics
Q. Which gas is used in fluorescent lamps?
  • (A) Oxygen
  • (B) Nitrogen
  • (C) Argon
  • (D) Carbon dioxide
✅ Correct Answer: (C) Argon

Explanation: Fluorescent lamps contain mercury vapor and argon gas to produce visible light efficiently.

Explanation by: Tina Singh
Fluorescent lamps contain mercury vapor and argon gas to produce visible light efficiently.

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