The frequency of a sound wave not only refers to the number of back-and-forth vibrations of the particles per unit of time , but also refers to the number of compressions or rarefactions that pass a given point per unit of time.
The frequency of a sound wave not only refers to the number of back-and-forth vibrations of the particles per unit of time , but also refers to the number of compressions or rarefactions that pass a given point per unit of time.