Question

A sound wave has a wavelength of 0.450 meters. If its speed in cold air is 330 meters/second, what is the wave's frequency?


0.890 hertz




100 hertz




230 hertz




733 hertz

Answer 1

the relationship between frequency \(f\), wavelength \(\lambda\) and speed \(v\) is:
\(\lambda \cdot f= v\)

Answer 2

so:
\[f = \frac{v}{\lambda } = \frac{{330}}{{0.450}} = ...?\]