When two wave pulses on the same side of a spring meet, they add. as in the figu
ID: 1606197 • Letter: W
Question
When two wave pulses on the same side of a spring meet, they add. as in the figure at right. This is an example of superposition. How do you make sense of this phenomenon? In other words, do pulses add when they're on the same side of the spring/does the superposition principle work the way it does? When wave pulses that are on opposite sides of the same spring meet, they subtract, as in the figure at right. Answer the same question as above: how do you make sense of this phenomenon? do pulses subtract when they're on opposite sides of the spring?Explanation / Answer
9)The two given two pulses are in phase with each other. So the oscillation at a given point are in the same direction, the resulting amplitude at that point will be much larger than that of the wave's. This is called as constructive interference of waves. The amplitudes of individual waves have got added and resulted in the wave that has got aplitude equal to (A + B).
In the second situation, the two given pulses are interfereing destructively as the resulting amplitude is less than either of two.
If two pulses of same amplitude undergo destructiive interference then the resulting amplitude is zero.
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