Question

When a man closes the holes near the mouth of the flute, will the pitch of the sound increase or decrease?

Answer 1

I wrote decreased with the reason that as the sound waves would cover longer distance( since the holes near to his mouth is covered), the pitch will decrease.

Answer 2

Answer: In the given scenario, the pitch of the sound increases on closing the holes near the mouth of the flute.

Explanation:

In the case of a flute, the pitch of the sound produced depends on the length of the column of air that vibrates. Whenever the holes near the mouth are closed, the length of the air column reduces and hence a lower volume of air vibrates producing a sound with a higher pitch.