State one way of increasing the frequency of a note produced by an air column.

Explanation

To increase the frequency of a note produced by an air column, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Relationship Between Frequency and Wavelength**:
- The frequency (f) of a sound wave is related to its wavelength (λ) and the speed of sound (v) in the medium by the formula:
\[
v = f \times \lambda
...