What is meant by refraction of a wave?

1065

---

What is transverse wave motion?

1016

---

What is channel?

1055

---

What is the velocity of sound air?

1139

---

How echo is produced?

990

---

What sound waves travel from air to water the frequency remains?

1037

---

What is the quantity?

1030

---

How many types of wave motions are there?

1085

---

What generates seismic waves?

1077

---

What is the loudness?

1000

---

Which waves are used in sonography?

1039

---

What is a synthesizer?

1066

---

What is audio frequency?

1034

---

What are the characteristics of a musical sound?

953

---

In which medium the velocity of sound is large?

935

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