A girl is standing on a pier watching water waves. She notices that 12 wave crests pass a vertical post in a time of 8.0 s.
What is the frequency of the waves?
0.67 Hz0.67\text{ Hz}0.67 Hz
1.5 Hz1.5\text{ Hz}1.5 Hz
8.0 Hz8.0\text{ Hz}8.0 Hz
96 Hz96\text{ Hz}96 Hz
237 exam-style questions on CIE IGCSE Physics General properties of waves, covering General properties of waves. Each one has a worked solution and a mark scheme showing where the marks go.