A boy is watching a buoy bobbing up and down in the sea. He notices that the buoy completes 8 full upward and downward cycles in 10 s.
What is the frequency of the wave?
0.80 Hz0.80\text{ Hz}0.80 Hz
1.25 Hz1.25\text{ Hz}1.25 Hz
18 Hz18\text{ Hz}18 Hz
80 Hz80\text{ Hz}80 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.