R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Physics Q. Mach number is used in connection with the speed of (A) Ships (B) Aircraft (C) Sound (D) Spacecraft 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (B) Aircraft You must be Logged in to update hint/solution 💬 Discussion 💬 Comment