Exam-style question
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In a longitudinal wave, what are the regions called where particles are closest together?.
- A.Compressions
- B.Rarefactions
- C.Nodes
- D.Antinodes
Model answer
What a good answer should say
- Compressions
Explanation
Why this works
In a longitudinal wave, compressions are the regions where particles are closest together, contrasting with rarefactions where particles are spread apart.
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