Qstnid -Ii-1-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. - 16: Sound Wave - Neet-xii-physics

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NEET-XII-Physics

16: Sound Wave

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#1
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.
(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.
digAnsr: a
Ans : (a) Both A and B are correct.
Sound is a longitudinal wave produced by the oscillation of pressure at a point, thus, forming compressions and rarefactions. That portion of gas itself does not move but the pressure variation causes a disturbance.
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