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Consider the following statements about ...

Consider the following statements about and passing through a gas.
A. the pressure of the gas at a point oscillates in time.
B. The position of a small layer of the gas oscillates in time.

A

both A and B are correct

B

A is correct but B is wrong

C

B is correct but A is wrong

D

Both A and B are wrong

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The correct Answer is:
A
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