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The shape of a wave is represented by y=...

The shape of a wave is represented by `y=(1)/(1+x^(2))` at `t=0` and `y=(1)/(1+(x-1)^(2))` at `t=2s`. Assume that the shape of the wave remains unaltered as it advances in the medium. Find the velocity of the wave and represent the wave graphically.

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The correct Answer is:
`0.5 m//s`
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