Exam-style question
Try this first
Which of the following best describes a stationary wave?.
- A.A wave that travels through a medium
- B.A wave that does not transfer energy
- C.A wave that has a constant amplitude
- D.A wave that is always longitudinal
Model answer
What a good answer should say
- A wave that does not transfer energy
Explanation
Why this works
A stationary wave is characterized by the presence of nodes and antinodes, and it does not transfer energy through the medium, unlike progressive waves.
Common mistake
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