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Pressure variation of a mechanical wave depends upon ___________

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Pressure variation of a mechanical wave depends upon ___________

(a) ∝Intensity

(b) Independent of intensity

(c) ∝1/Intensity

(d) Intensity^2

I had been asked this question by my school teacher while I was bunking the class.

This is a very interesting question from Sounds and Waves in chapter Waves of Engineering Physics I

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Right option is (c) ∝1/Intensity

Explanation: Pressure amplitude vibration in a medium∝Amplitude of the wave (A)

Hence pressure variation is proportional to the intensity of the wave.

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