Physics · May / June 2025 · Paper 12 · Question 19
5054General properties of waves
A cork on the surface of water moves up and down as a wave passes across the surface. The diagram shows how the height of the cork above the average level of the surface varies with time. The numerical value of the wavelength of this wave is equal to the numerical value of the amplitude of this wave. What is the speed of the wave?
- A1.0 cm / s
- B2.0 cm / s
- C4.0 cm / s
- D8.0 cm / s
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Correct answer: C. 4.0 cm / s
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