Radio waves, infrared radiation, and ultraviolet radiation are all components of the electromagnetic spectrum. Which statement about the waves is correct?
In a vacuum, radio waves travel faster than infrared radiation and have a longer wavelength.
In a vacuum, radio waves travel at the same speed as infrared radiation and have a shorter wavelength.
In a vacuum, ultraviolet radiation travels faster than infrared radiation and has a shorter wavelength.
In a vacuum, ultraviolet radiation travels at the same speed as infrared radiation and has a shorter wavelength.
198 exam-style questions on CIE IGCSE Physics Electromagnetic spectrum, covering Electromagnetic spectrum. Each one has a worked solution and a mark scheme showing where the marks go.