Different types of waves travel through the air.
Which of the following pairs of waves has the greatest difference in speed?
infrared waves and microwaves
infrasound waves and sound waves
X-rays and infrared waves
infrasound waves and microwaves
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.