Physics · Oct / Nov 2018 · Paper 12 · Question 22
5054General properties of waves
Which statement about a water wave is correct?
- AThe amplitude is the vertical distance between a trough and a peak.
- BThe frequency is the number of troughs passing a point in one second added to the number of peaks passing a point in one second.
- CThe speed is the horizontal distance travelled per second by a peak.
- DThe wavelength is the horizontal distance between a trough and a peak.
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Correct answer: C. The speed is the horizontal distance travelled per second by a peak.
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