00:01
So in the previous question, we had these graphs or these diagrams about waves and what the resultant wave would be when they apply the superposition principle.
00:13
In this question, we're going to use the same diagram to explain the difference between constructive and destructive interference.
00:20
Constructive interference is essentially what happened in image a.
00:31
Constructive interference is when you have two crests or two troughs that are added together, and they increase the resultant waveform in terms of its amplitude.
00:46
Remember, we have two waves, and their amplitudes were the same, but in the end, the superposition principle added those amplitudes together to create a double amplitude.
01:00
But you can have, it doesn't have to be double.
01:04
It could be maybe even three times as much or five times as high, higher than the previous waves.
01:09
It all depends on what waves you're adding, but constructive interference increases the weight amplitude of your resultant wave.
01:17
And this is your resultant wave...