Given:
The frequency of the wave, f=723 Hz.
To find:
The period of the wave.
Step-by-step explanation:
The frequency of a wave is the number of the waves that pass through a point per second.
The period of a wave is the time it takes for the wave to complete one cycle.
The period of a wave is given by the inverse of its frequency.
Thus the period of the wave is given by,

On substituting the known value in the above equation,

Final answer:
The period of the wave is 1.38×10⁻³ s.