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Sagot :
When sound and counters a barrier it reflects. Yes we can hear the sound wave but cannot see the source. A sound is created when light is reflected back by a barrier the superposition of the two sound wave take place when the interfere with each other.
Sound wave encounters a barrier in its path it still propagates through the barrier but most of the part of the sound is reflected back.
When sound wave falls on a barrier it bends but we can still here the sound even though we cannot see the sound wave source because sound wave create a disturbance in the particle of the barrier itself.
When the sound is reflected back by a barrier a sound is created that can be heard by the observer because sound has made disturbance in the medium.
When one sound wave interferes with another sound wave it superimposes with the other wave.
To know more about sound wave, visit,
https://brainly.com/question/1199084
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