What is meant by refraction of a wave?

1066

---

What is transverse wave motion?

1017

---

What is channel?

1057

---

What is the velocity of sound air?

1139

---

How echo is produced?

993

---

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

1038

---

What is the quantity?

1031

---

How many types of wave motions are there?

1086

---

What generates seismic waves?

1079

---

What is the loudness?

1007

---

Which waves are used in sonography?

1040

---

What is a synthesizer?

1071

---

What is audio frequency?

1040

---

What are the characteristics of a musical sound?

954

---

In which medium the velocity of sound is large?

937

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