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Question

Which of the following statement(s) is/are correct regarding a sound wave?



Correct Answer
A

Compression is a region of high density and high pressure.

Your Answer
B

Rarefaction is a region of high density and high pressure.

Your Answer
C

Compression is a region of low density and low pressure.

Correct Answer
D

Rarefaction is a is a region of low density and low pressure.


Solution

The correct options are
A

Compression is a region of high density and high pressure.


D

Rarefaction is a is a region of low density and low pressure.


Compression is a region where particles are relatively close. So, it is a region of high density and high pressure.

Rarefaction is a region where particles are spread apart. So, it is a region of low density and low pressure.

In the figure below compression is represented by (C) and rarefaction is represented by (R)

                                                                                          

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