Find the wavelength of a 26 Hz sound wave traveling through air at 20ºC. Hint: speed of sound at 20ºC = 343 m/s

The correct answer for the question that is being presented above is this one: "B. 13m."

The formula of wave velocity is this:

wave velocity = f * λ

λ = v / f

λ = 343m/s / 26Hz

λ = 13.20m ... ans (b)

Here are the following choices:

A. 5m

B. 13m

C. 28m

D. 58m