What is the way of measuring the frequency of the turning fork?

The frequency of a tuning fork can be measured using a frequency counter or an oscilloscope, which detects the vibrations produced by the fork when struck. Alternatively, a smartphone app that utilizes the microphone can analyze the sound and provide a frequency reading. The tuning fork's frequency is typically labeled on its stem, indicating the number of vibrations per second, measured in Hertz (Hz).