Physics for IGCSE & O level - Waves And Sounds (Section 1 - No. 41)
Which of the following can be described as the frequency of a sound wave?
The distance between two successive compressions
The number of cycles completed per unit of time
The height of the wave
The speed at which the wave travels
Giải thích
The frequency of a wave is defined as the number of cycles or oscillations that occur per unit of time.