A 520 Hz tone is sounded at the same time as a 516 Hz tone now the beat frequency is 4 Hz.
<h3>What is a frequency?</h3>
The pace of direction changes in current per second is known as frequency. It is expressed in hertz (Hz), a unit of measurement that is used internationally. One hertz is equal to one cycle per second. One hertz (Hz) is equivalent to one cycle per second. A complete alternating current or voltage wave is referred to as a cycle.