Question

Wave pulse on a string shown in figure is moving to the right without changing shape. Consider two particles at positions $x_1=1.5m$ and $x_2=2.5m$. Their transverse velocities at the moment shown in figure are along directions

• A. positive y- axis and positive y- axis respectively
• B. negative y- axis and positive y- axis respectively
• C. positive y- axis and negative y- axis respectively
• D. negative y- axis and negative y- axis respectively

Answer 1

Answer: (B)

negative y- axis and positive y- axis respectively

Dotted shape shows pulse position after a short time interval. Direction of the velocities are decided according to direction of displacement of the particles