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A pulse travelling at a speed of 2m/s a...

A pulse travelling at a speed of `2m/s ` along the positive Z-axis is given by y `= (3)/( z^(2)+1)` at t= 0 .The wave function representing the pulse at any times is given by

A

` y=( 3)/( (z-2t) ^(2) +1) `

B

` y= ( 3)/( (z+ 2t) ^(2) +1) `

C

` y= ( 3)/( (2z+t)^(2) +1)`

D

` y= (3)/( (2z-t) ^(2) +1)`

Text Solution

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The correct Answer is:
A
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