Understanding the Relationship

* Speed of sound (v): The speed at which sound travels through a medium (in this case, air).

* Wavelength (λ): The distance between two consecutive crests or troughs of a wave.

* Frequency (f): The number of waves that pass a point in one second.

These three are related by the following equation:

v = fλ

Solving for Frequency

1. Rearrange the equation: To solve for frequency (f), divide both sides of the equation by wavelength (λ):

f = v / λ

2. Plug in the values:

* v = 340 m/s (speed of sound)

* λ = 0.68 m (wavelength)

3. Calculate:

f = 340 m/s / 0.68 m

f ≈ 500 Hz

Therefore, the frequency of the wave is approximately 500 Hz.