O-LevelPhysicsWaves5054/11 · May/June 2019 · Q271 Mark
Four sound waves are displayed on the screen of a cathode-ray oscilloscope. Which sound wave gets louder and has a pitch that decreases?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
ADiagram of a waveform with medium amplitude and medium period.
BDiagram of a waveform with large amplitude and long period.
CDiagram of a waveform with small amplitude and short period.
DDiagram of a waveform with medium amplitude and short period.
✓ Correct answer
B: Diagram of a waveform with large amplitude and long period.
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