Exam-style question
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What is a characteristic feature of a stationary wave?.
- A.It travels through space
- B.It has fixed points called nodes
- C.It has a constant amplitude everywhere
- D.It can be polarized
Model answer
What a good answer should say
- It has fixed points called nodes
Explanation
Why this works
Stationary waves are characterized by the presence of nodes, which are points where there is no displacement, and antinodes, where the displacement is maximum. This is a fundamental aspect of stationary wave behavior.
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