Let y = 1/(1+x2) at t=0s be the amplitude of the wave propagating in the positive x-direction. At t = 2 s, the amplitude of the wave propagating becomes 1 / 1+(x-2)2. Assume that the shape of the wave does not change during propagation. The velocity of the wave is
A. 0.5ms-1
B. 1.0ms-1
C. 1.5ms-1
D. 2.0ms-1
Answer:B
Let y = 1/(1+x2) at t=0s be the amplitude of the wave propagating in the positive x-direction. At t = 2 s, the amplitude of the wave propagating becomes 1 / 1+(x-2)2. Assume that the shape of the wave does not change during propagation. The velocity of the wave is
A. 0.5ms-1 B. 1.0ms-1 C. 1.5ms-1 D. 2.0ms-1