The following list contains the names of types of energy transfer by means of waves:
X-rays, microwaves, visible light, ultraviolet, infra-red, ultrasound, radio waves \text{X-rays, \quad microwaves, \quad visible light, \quad ultraviolet, \quad infra-red, \quad ultrasound, \quad radio waves} X-rays, microwaves, visible light, ultraviolet, infra-red, ultrasound, radio wavesWhich one of these is not a type of electromagnetic wave?
State the nature of the wave you have named in (a)(i).
The remaining names in the list are all regions of the electromagnetic spectrum, but one region is missing. Name the missing region.
A mobile phone transmitter emits waves with a frequency of 1.5×109 Hz1.5 \times 10^9\text{ Hz}1.5×109 Hz. Electromagnetic waves travel at a speed of 3.0×108 m/s3.0 \times 10^8\text{ m/s}3.0×108 m/s.
Calculate the wavelength of the waves emitted by this transmitter. State the equation you use.
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.