Which statement about electromagnetic waves in a vacuum is always correct?
High-frequency waves travel faster than low-frequency waves.
High-frequency waves have a shorter wavelength than low-frequency waves.
Low-frequency waves travel faster than high-frequency waves.
Low-frequency waves have a shorter wavelength than high-frequency waves.
32 exam-style questions on OCR GCSE Physics The electromagnetic spectrum. Each one has a worked solution and a mark scheme showing where the marks go.