Question

Let y = `1/(1 + x^2)` at  t = 0 be the amplitude of the wave propagating in the positive x-direction. At t = 2s, the amplitude of the wave propagating becomes y = `1/(1 + (x - 2)^2)`. Assume that the shape of the wave does not
change during propagation. The velocity of the wave is:

Options

• 0.5 ms^-1

• 1.0 ms^-1

• 1.5 ms^-1

• 2.0 ms^-1

Answer 1

1.0 ms^-1