In stationary waves:
Correct answer: C. Strain is maximum at node
- A. Strain is maximum at antinodes
- B. Strain is minimum at nodes
- C. Strain is maximum at node
- D. Amplitude is same at all points
Explanation
In a stationary wave, the node is the point of minimum amplitude. Minimum amplitude means maximum strain, therefore strain is maximum at the nodes.
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About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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