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in a sine wave ,postive of different par...

in a sine wave ,postive of different particles at time t=0 is shown in figure. The equation for this wave if it is travelling along postive x -axis can beB

A

`y = A sin (omega t - kx)`

B

`y = A cos (kx - omegat)`

C

`y = A cos (omega t - kx)`

D

`y = A sin (kx - omega t)`

Text Solution

Verified by Experts

The correct Answer is:
D
It is clear from figure that at t = 0, x = 0 displacement
y = 0. Therefore, option (a) or (b) may be correct. ltbr gt In case of (d), y = A sin `(kx - omega t)`
`(dy)/(dt) = A cos (kx - omegat)(-omega)`
`(dy)/(dx)=A cos (kx-omegat)(k)`
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