P Physics Walla 🎓 Invincible ⭐ 649 Points 📊 Physics Q. SONAR is based on the principle of (A) Echo (B) Resonance (C) Reverberation (D) None of these 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (A) Echo You must be Logged in to update hint/solution 💬 Discussion 💬 Comment