A traffic speed enforcement radar system emits microwave radiation with a wavelength of 1.25 cm1.25\text{ cm}1.25 cm to measure the speed of passing vehicles. The speed of microwaves in air is 3.00×108 m s−13.00 \times 10^8\text{ m s}^{-1}3.00×108 m s−1.
Calculate the frequency of the microwave radiation. Give your answer in standard form.
29 exam-style questions on AQA GCSE Physics 6.2 Electromagnetic waves, covering 6.2.1 Types of electromagnetic waves, 6.2.2 Properties of electromagnetic waves 1, 6.2.3 Properties of electromagnetic waves 2, 6.2.4 Uses and applications of electromagnetic waves, 6.2.5 Lenses, and 6.2.6 Visible light. Each one has a worked solution and a mark scheme showing where the marks go.