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Sagot :
When all of the students who had heard nothing originally now hear a loud tone, while me and the others who had originally heard the loud tone hear nothing. In this case the professor "changed the phase relationship of the speakers".
What is phase relationship of the sound wave?
The link between the cycles of several periodic waves is known as a phase. A full cycle is divided into steps of 0° to 360°. The difference in beginning positions between two or more identical waveform is expressed in degrees.
The purpose of this demonstration is to demonstrate to students is -
- how electromagnetic waves and sound waves can interfere with one another.?
- Two separate sound sources can produce either constructive or destructive interference depending on how they are configured.
- When there is destructive interference present, some students won't hear anything, while others will hear a low tone that corresponds to constructive interference.
To know more about electromagnetic waves, here
https://brainly.com/question/13874687
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