R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Physics Q. The frequency of ultrasound wave is typically (A) Below 02 kHz (B) Above 20 kHz (C) Above 20,000 kHz (D) Below 20 kHz 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (D) Below 20 kHz You must be Logged in to update hint/solution 💬 Discussion 💬 Comment