Textbook ExpertVerified Tutor
10 Nov 2021
Given information
Sound has a number of characteristics that suggest it is a wave. Interference is a wave phenomenon, and sound is the source of interference (such as beats). Diffraction is a wave phenomenon, and sound can be diffracted as well (such as sound being heard around corners). Refraction is a wave phenomenon that occurs when sound travels obliquely from one medium to another.
Step-by-step explanation
Step 1.
The wave pattern created by beats does travel from one place to another. Anyone point in the medium will at one time have a 0 amplitude (node) and half a beat period later, have a maximum Sound amplitude (anti-node). Thus the interference can be described as “interference in time”.
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