A-LevelPhysicsWaves9702/12 · Feb/Mar 2017 · Q241 Mark

The diagram shows two waves R and S. [Figure showing displacement vs time graph for two waves R and S] Wave R has an amplitude of 8 cm and a period of 30 ms. What are the amplitude and the period of wave S?

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Aamplitude/cm: 2, period/ms: 10

Bamplitude/cm: 2, period/ms: 90

Camplitude/cm: 4, period/ms: 10

Damplitude/cm: 4, period/ms: 90

✓ Correct answer

C: amplitude/cm: 4, period/ms: 10

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