M Mr. Dubey 🎓 Coach ⭐ 103.71K Points 📊 Science Q. Who discovered Ultrasound? (A) Ian Donald (B) Roger Bacon (C) JP Merri (D) Joseph Lister 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (A) Ian Donald You must be Logged in to update hint/solution 💬 Discussion 💬 Comment