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JEE MAIN 2021
20-07-2021 - S1
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The amplitude of wave disturbance propagating in the positive x-direction is given by $y=\frac{1}{(1+x)^2}$ at time t = 0 and $y=\frac{1}{1+(x+2)^2}$ at t = 1s, where x and y are in meres. The shape of wave does not change during the propagation. The velocity of the wave will be ____ m/s.
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