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Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveEquation/Relation between Displacement & excess pressureMedium3 minQB

PhysicsMediummultiple choice

Passage / Comprehension

The figure represents the instantaneous displacement-position graph of a longitudinal harmonic wave travelling along the negative $x$ -axis. Identify the correct statement related to the movement of the points shown in the figure.

The points moving opposite to the direction of propagation are:

Options:(select one or more)

Answer:

Solution:

$V_{p} > 0$ (opposite to wave velocity)
requires slope:
$\frac{d s}{d x} > 0$
At a slope 0, d negative, f positive, j negative.
Hence point f.
Printed key: C.

Subject:PhysicsTopic:Sound WaveSubtopic:Equation/Relation between Displacement & excess pressure

⏱ 3mℹ️ Source: QB

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