Question

In a stationary wave along a string the strain is

• A. Zero at the antinodes
• B. Maximum at the antinodes
• C. Zero at the nodes
• D. Maximum at the nodes

Answer 1

The correct options is A. (Maximum at the 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.