A mechanical wave propagates in a medium along the X-axis. The particles of the medium

must move on the X-axis

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must move on the Y-axis

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may move on the X-axis

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may move on the Y-axis

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Solution

The correct options are
C
may move on the X-axis

D
may move on the Y-axis

If the wave is moving along the +ve X-axis and if it is a longitudinal wave particles willmove along X-axis itself. If it is transverse, it will move along Y-axis (or Z axis). So only (c) and (d) make sense.

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Similar questions

v = \frac{d x}{d t} = f (x)

Column I	Column II
A. Initial velocity > 0	P. Particle may move in +ve X direction with increasing speed
B. Initial velocity < 0	Q. Particle may move in +ve X direction with decreasing speed
C. X > 0	R. Particle may move in -ve X direction with increasing speed
D. X < 0	S. Particle may move in -ve X direction with decreasing speed

(x, 0)

\frac{d x}{d t} = {cos}^{2} π x

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