The pressure variations in the propagation of sound waves in gaseous medium are
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The pressure variations in the propagation of sound waves in gaseous medium are "Adiabatic"
Explanation:
A sound wave consists of "compressions and rarefactions". In compression, the particles are very close to each other and the temperature increases, whereas in rarefaction the particles move away from each other.
There are huge gaps among them due to which the heat energy dissipates into the surrounding and temperature decreases. Thus the sound waves in a gaseous medium propagate in an "adiabatic process" where temperature varies and does not remain the same.
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