Q. The velocity of light in vacuum or air is

  • (A) 2 x 10^4 m/sec
  • (B) 9 x 10^2 m/sec
  • (C) 3 x 10^11 m/sec
  • (D) 3 x 10^8 m/sec
✅ Correct Answer: (D) 3 x 10^8 m/sec

Published by Ravi Chauhan ⭐ 11.26K Points at 18-Oct-2021 06:16 am in Physics

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