Question

Number of vibrations completed by a vibrating object per unit is called ___________

Answer 1

Frequency:

1. 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 the symbol v (Greek letter nu). The SI unit of frequency is called hertz (Hz), where 1 Hz = 1 oscillation per second.

Hence, the Number of vibrations completed by a vibrating object per unit is called frequency