R Ravi Chauhan 🎓 Tutor II ⭐ 11.26K Points 📊 Physics Q. The principle employed in sonar is (A) echo (B) production of sound (C) absorption of sound (D) sound vibration 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (A) echo You must be Logged in to update hint/solution 💬 Discussion 💬 Comment