Exam-style question
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In a displacement-time graph for a progressive wave, what does the amplitude represent?.
- A.The distance between two nodes
- B.The maximum displacement from the rest position
- C.The wavelength of the wave
- D.The frequency of the wave
Model answer
What a good answer should say
- The maximum displacement from the rest position
Explanation
Why this works
In a displacement-time graph, the amplitude is the maximum displacement of the wave from its rest position, indicating the energy carried by the wave.
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