Which group contains only longitudinal waves?
radio waves, sound waves, X-rays
sound waves, ultrasound waves, seismic P-waves
light waves, seismic S-waves, ultrasound waves
microwaves, sound waves, seismic P-waves
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.