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Sound waves are trqvelling along positiv...

Sound waves are trqvelling along positive x - direction. Displacement of particle at any time `t` is as shows in figure. Select the correct statement.

A

Particle located at `E` has its velocity in negative `x -` direction

B

Particle locted at `D` has zero velocity

C

Both (a) and (b) are correct

D

Both (a) and (b) are wrong

Text Solution

Verified by Experts

The correct Answer is:
C
`:. nu_(p) = - nu((del y)/(del x))`, where `nu = +` ve.
At `E` , `(del y)/(del x)` or slope is positive.
Hence, `nu_(p)` is negative.
At `D`, `(del y)/(del x)` or slope is zero. Hence, `nu_(p)` is zero.
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