* A longer wavelength corresponds to a lower frequency.
* A shorter wavelength corresponds to a higher frequency.
Here's why:
Imagine a wave traveling through space. The wavelength is the distance between two consecutive crests (or troughs) of the wave. The frequency is the number of wave cycles that pass a given point per second.
Think of it like this:
* Long wavelength: Imagine a wave with large, spaced-out crests. It takes more time for the wave to complete a cycle, so it has a lower frequency.
* Short wavelength: Imagine a wave with small, closely spaced crests. It completes a cycle more quickly, resulting in a higher frequency.
The relationship is defined by the following equation:
```
c = fλ
```
Where:
* c is the speed of light (or the speed of the wave in the medium it's traveling through)
* f is the frequency
* λ is the wavelength
This equation tells us that if the speed of the wave is constant, then a longer wavelength must correspond to a lower frequency, and vice versa.
