Question

Wave pulse on a string shown in figure. is moving to the right without changing shape. Consider two particles at positions $x_{1}=1.5\, m$ and $x_{2}=2.5\, m$. 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)

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