The box contains a list of four types of wave:
radio wavessoundultrasoundmicrowaves \text{radio waves} \qquad \text{sound} \qquad \text{ultrasound} \qquad \text{microwaves} radio wavessoundultrasoundmicrowavesHow many waves in the list are longitudinal waves?
1
2
3
4
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.