What type of interference results from waves of different frequencies?

When waves of different frequencies interact, they can produce both constructive and destructive interference. Constructive interference occurs when the wave crests align with the crests of another wave, resulting in a wave of greater amplitude. Conversely, destructive interference arises when the crest of one wave coincides with the trough of another wave, leading to a reduction in amplitude or even cancellation of the waves.

Since waves of different frequencies do not maintain a consistent phase relationship, the resulting interference pattern continually changes. This results in a complex wave that exhibits varying amplitudes due to the alternating constructive and destructive effects over time. Therefore, the presence of waves with different frequencies indeed leads to both types of interference, making the answer appropriate and reflective of the underlying physics principle.