Describe an experiment to determine the speed of water waves (ripples) in a shallow ripple tank. State the apparatus you need, details of how to make measurements, and how to calculate the speed of the waves.
Water waves with a wavelength of 2.0 cm2.0\text{ cm}2.0 cm are directed at a barrier with a gap.
Explain why the waves behave differently in these two situations.
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.