What is the principle on which sitar and violin are based?

1087

---

What is reverberation?

996

---

Which is the sound wave that is below the human hearing?

942

---

What is speed of sound at sea level?

1028

---

What is sound?

1009

---

What is ultrasonic sound?

1027

---

What is tone control?

988

---

For which type of waves is the principle of superposition valid?

958

---

What is constructive interfernce?

1053

---

Give an example of transverse wave?

1010

---

What is frequncy?

1073

---

What is sonar?

1086

---

What is amplitude?

965

---

Who first described how shock waves are formed?

1161

---

What is anti - noise?

1024

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