A periodic wave travels from one medium into another medium where its speed is lower. Which of the following describes the changes, if any, to the frequency and wavelength of the wave?
Both the frequency and the wavelength decrease.
The frequency remains constant, while the wavelength decreases.
The frequency increases, while the wavelength remains constant.
The frequency remains constant, while the wavelength increases.
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.