Question

In a stationary wave

• A. strain is maximum at nodes.
• B. strain is minimum at nodes.
• C. strain is maximum at antinodes.
• D. amplitude is zero at all points.

Answer 1

The correct option is (A) strain is maximum at nodes.

1. At the nodes, the magnitude of the slope of the waveform is maximum.
2. Thus, the value of load to stretch the string will be maximum, so strain will be maximum at nodes.
3. Amplitude is minimum at the nodes.
4. Strain is minimum at the anti-nodes.