Question

A wave travelling along the x-axis with y representing its displacement is described by (𝑣 is the speed of the wave)

• A. $\frac{∂y}{∂x}+\frac{1}{v}\frac{∂y}{∂t}=0$
• B. $\frac{∂y}{∂x}-\frac{1}{v}\frac{∂y}{∂t}=0$
• C. $\frac{∂^2y}{∂x^2}-\frac{1}{v^2}\frac{∂^2y}{∂t^2}=0$
• D. $\frac{∂^2y}{∂x^2}+\frac{1}{v^2}\frac{∂^2y}{∂t^2}=0$

Answer 1

Answer: (A), (B), (D)

$\frac{∂y}{∂x}+\frac{1}{v}\frac{∂y}{∂t}=0$

Answer 2

The correct options are: A, B and D