R Ravi Chauhan 🎓 Tutor II ⭐ 11.26K Points 📊 Physics 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 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (D) 3 x 10^8 m/sec You must be Logged in to update hint/solution 💬 Discussion 💬 Comment