Question

What do you mean by frequency of sound? What is its SI unit?

Answer 1

Frequency:

1. The frequency of a sound wave is the number of oscillations completed per unit time by the sound.
2. Alternately, the frequency of a sound wave is the number of compressions or rarefactions crossing a particular section per unit time.
3. Frequency is usually represented by symbol v (Greek letter nu).

SI unit:

1. The SI unit of frequency is called hertz (Hz), where 1 Hz = 1 oscillation per second.