draw the picture of two travelling waves that
add upto form
constructive interference
Answers
Answer:
the last section we discussed the fact that waves can move through each other, which means that they can be in the same place at the same time. This is very different from solid objects. Thus, we need to know how to handle this situation. As it turns out, when waves are at the same place at the same time, the amplitudes of the waves simply add together and this is really all we need to know! However, the consequences of this are profound and sometimes startling.
To start exploring the implications of the statement above, let�s consider two waves with the same frequency traveling in the same direction:
If we add these two waves together, point-by-point, we end up with a new wave that looks pretty much like the original waves but its amplitude is larger. This situation, where the resultant wave is bigger than either of the two original, is called constructive interference. The waves are adding together to form a bigger wave. You may be thinking that this is pretty obvious and natural � of course the sum of two waves will be bigger than each wave on its own. However, carefully consider the next situation, again where two waves with the same frequency are traveling in the same direction: