What is a rarefaction?
a point in a longitudinal wave where the particles of the medium are far apart
a point in a longitudinal wave where the particles of the medium are close together
a point in a transverse wave where the particles of the medium are far apart
a point in a transverse wave where the particles of the medium are close together
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.