Calculate the speed of the waves using. Calculate wavelength with the wavelength equation. Calculate the frequency of the wave.
Count the number of waves passing a point in ten seconds then divide by ten to record frequency.
First select the Preset from the drop-down menu. Choose the Right Form of the Equation. Finally calculate the wave speed. Putting these figures into the calculator above shows that the speed of sound in air is close to 3401 meters per second.