What is the SI Unit of Frequency?

Answer:  The number of waves that pass a fixed point in a unit of time is referred to as frequency. The time period refers to the amount of time needed to complete one vibration. The number of vibrations per second is frequency inversely proportional to the time period.

The hertz is the frequency SI unit (Hz). A hertz equals a cycle of one per second.

Frequency can be calculated by the following formula;

Frequency = VelocityWavelength

The wavelength is inversely proportional to the frequency.