A man playing a flute is able to produce notes of different frequencies if he closes the holes near its mouth will the pitch of the note produced increase or decrease?
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The pitch of the note is incresed.
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Answer: The pitch of the sound increases when the holes near the mouth of the flute are closed.
Explanation:
Pitch of the sound depends on the length of the column of air that vibrates. Pitch is inversely proportional to the length of the air column.
When the holes near the mouth of the flute are closed, the length of the air column that vibrates gets reduced and hence a lower volume of air vibrates producing a sound having a higher pitch.
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