Now consider, for example, the point d in figure A, where there is destructive interference.

The degree of constructive or destructive interference between the two light waves is dependent upon the difference in their phase.

All three of these effects are created by constructive and destructive interference of the light hitting the film.

The effect, called destructive interference, is to cancel the reflection entirely.

This leads to destructive interference and a minimum in the added plot.

As explained above, having so many wavelengths mean that destructive interference happens quickly.

There are two types of interference: constructive and destructive.

Individual stations may apply for up to 10% ( 10dBc) if they can prove it will not cause destructive interference to any other station.

In essence, the two waves cancel each other out, a phenomenon known as destructive interference.

All together, one half cancels the other: completely destructive interference, a dark spot.