Two waves are interfering with each other. The first wave has an amplitude of +2 cm, and the second wave has an amplitude of -1 cm. When these two waves superpose, what is the amplitude of the superposition?

Question

cj7529 · Answer

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When the two waves superpose you basically add the y values at any given x coordinate
So in this cas, because their amplitudes are negatives of each other, the effect is to subtract

So when wave1 = 2, wave2 = -1
So the superposition of the two waves is 1