Frequency can be defined as the number of times a wave repeats itself in one second
Frequency is the number of waves that pass through a point in a given period of time. The frequency of the wave is inversely proportional to the time period.
The time period is denoted by T while the frequency is denoted by f. The relation between T and f is given as
Frequency ( f) = 1/T
The unit of the time period is second while the unit of frequency is Hertz.