# Question #fb7d5

Sep 28, 2017

Slide the slide so as to increase the length of the air column that is resonating.

#### Explanation:

The relationship between the speed of sound, $v$; wavelength, $\lambda$; and frequency, $f$, is
$v = \lambda \cdot f$.
If we assume that $v$ is constant and if $f$ is decreased, then $\lambda$ will be increased.

I hope this helps,
Steve