Question

What is the unit of frequency ...?​

Answer 1

The unit of frequency is Hertz.

It is denoted as Hz

Answer 2

HEY MATE!!!

frequency:- The number of oscillations per unit time is called the Frequency of the sound wave.

It is denoted by μ and is unit is Hz (Hertz).

Frequency   =    No of oscillations 

                           Time (in seconds)

 

human being can hear sound whose range is 20Hz to 20kHz