Consider the following statements about sound 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.

Both A and B are correct.

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A is correct but B is wrong.

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B is correct but A is wrong.

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Both A and B are wrong.

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Solution

The correct option is A Both A and B are correct.
Sound is a longitudenal wave which travels in the form of compressions and rarefactions and is produced by oscillation of pressure at a point. The pressure variation causes a disturbance but the gas portion itself does not move.

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Similar questions

(A)

(B)

Consider the following statements about sound passing through a gas.

(A) The pressure of the gas at a point oscillates over time.

(B) The position of a small layer of the gas oscillates over time.

0.001

d y n e / c m^{2}

(γ = 1.5

1.013 \times 10^{6}

/ c m^{2}

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