Understanding the Relationship

* Frequency (f): The number of wave cycles that pass a point in one second. Measured in Hertz (Hz).

* Period (T): The time it takes for one complete wave cycle to pass a point. Measured in seconds (s).

The Formula

The relationship between frequency and period is:

* f = 1 / T

Calculation

1. Given: Period (T) = 0.75 seconds

2. Substitute: f = 1 / 0.75 s

3. Calculate: f = 1.33 Hz

Answer: The frequency of the wave is 1.33 Hz.