Sagot :
The first and third, because it only produces odd partials.
The first and the third harmonics are predominant because they produce odd partials.
We know that the clarinet is a wind instrument. Wind instruments are those instruments that produce sound when a column of air is vibrated inside the instrument.
The clarinet closely follows the harmonics of a pipe that is open at one end. Hence, the first and the third harmonics are predominant because they produce odd partials.
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