The physics of wind instruments is based on the concept of standing waves. When the player blows into the mouthpiece, the column of air inside the instrument vibrates, and standing waves are produced. Although the acoustics of wind instruments is complicated, a simple description in terms of open and closed tubes can help in understanding the physical phenomena related to these instruments. For example, a flute can be described as an open-open pipe because a flutist covers the mouthpiece of the flute only partially. Meanwhile, a clarinet can be described as an open-closed pipe because the mouthpiece of the clarinet is almost completely closed by the reed.

answer:

fundamental frequency increases because the length decreases

The resonance in a tube that is open at one end and closed at the other, has a node at the closed end, the fundamental wavelength is

         λ= 4L / 1

It is made a hole in one side the length of the tube decreases, so the fundamental wavelength decreases.

Wave speed is related to frequency and wavelength. The wave is the air that has a speed of 340 m / s

       v = λ f

       f = v / λ

        f= 340 /4L

As the speed of the medium is constant and the wavelength decreases. The fundamental frequency increases because the length decreases

Explanation:

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