A travelling wave is found to have the d...

A travelling wave is found to have the displacement by `y= (1)/(1+x^2)` at t = 0, after 3 sec the wave pulse is represented by equation `y=(1)/(1+(1+x)^2)`.The velocity of wave is:

1 m/s

`1/3` m/s

`2/3` m/s

`1/4` m/s

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-PHYSICS SECTION B

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