With respect to the image given below of a sound wave propagating through air, identify the regions which correspond to rarefaction.

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Solution

The correct options are
A A
C C
Rarefactions are the regions where density of particles is lower than the mean density. As we can see, in regions marked A and C, particles are spread far apart and correspond to rarefaction regions.

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Similar questions

Which of the following terms apply to sound waves in air and which to water waves ?

Transverse, Rarefaction, Trough, Crest, Compression, Longitudinal

Write true or false for each statement:

(a) When sound propagates in air,it does not carry energy with it.

(b) In a longitudinal wave,compression and rarefaction are formed.

(d) The frequency is measured in second.

(e) The quality of sound depends on the amplitude of wave..

(f) The pitch of sound depends on frequency..

(g) Decibel is the unit of pitch of a sound.

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