Identify the part which vibrates to produce sound in the following instruments

CBSE Class 8 CBSE Class 8 Science
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Identify the part which vibrates to produce sound in the following instruments.

  1. Dholak
  2. Sitar
  3. Flute

Answer:

1. Dholak is a musical instrument. It consists of a stretched membrane called its head. When the head is beaten gently, the stretched membrane sets into vibration.
Since sound is produced when an object vibrates, the dholak produces a sound.
2. Sitar is a musical instrument. It consists of stretched strings. When a string is plucked, it sets into vibration. Since sound is produced when an object vibrates, the sitar produces a sound.
3.Flute is a hollow pipe. When air is blown over its mouth, the air inside the pipe is set into vibration. As a result, a pleasant sound is produced.