It often splits off a reference channel for the incident wave.

Suppose we have a single incident wave with frequency on two detectors.

Explosive-loading is also unlikely to produce clean incident waves, which may cause uneven strain rates throughout the test.

Objects in the defined location are still present, but incident waves are guided around them without being affected by the object itself.

The incident wave then has interference with the reflected one.

That's determined by what the incident waves are doing.

Such a line will never return a reflection since the incident wave will never reach the end to be reflected.

This will cancel the incident wave causing little or no transmission through the sheet.

However, the remaining portions of the incident waves during a major earthquake still bear a huge devastating potential.

In the figure above, illustrating the truncation of the incident spherical wave by the lens, we may note one very significant fact.