How are the wave patterns produced when two waves of water meet similar to the wave patterns produced when two rays of light interfere with each other?

1 Answer

As waves and light hit each other, they create areas of constructive and destructive interference.


With waves (for both water and light), constructive interference means that the amplitudes of the different waves add together to create a larger wave (brighter light), and the opposite is true for destructive interference. In destructive interference the amplitudes of the two waves cancel out (or come very close to it) and create an area with a very small net wave (dimmer light).