Physics (AS & A Level) · Oct / Nov 2016 · Paper 12 · Question 23
High-frequency sound waves with frequency 2.0 MHz travel with a speed of 2.0 km s–1 through a liquid. What is the shortest distance between a compression and a rarefaction (expansion) in the liquid?
- A0.5 mm
- B1.0 mm
- C5.0 mm
- D10.0 mm
As printed in the paper
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Correct answer: A. 0.5 mm
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