For sound to be heard by the human ear, the displacement of air by the sound wave has to be significant, at least a few centimetres.

Name: For sound to be heard by the human ear, the displacement of air by the sound wave has to be significant, at least a few centimetres.
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Question

Quizplus · Accepted Answer

Sound can be heard even with very small displacements of air; human ears are sensitive to displacements much smaller than a centimetre, down to nanometre scales.

For Sound to Be Heard by the Human Ear, the Displacement