Some properties of different bands of infrared (IR) radiation are shown in the table below.
| Infrared Band | Wavelength range | Atmospheric transmission |
|---|---|---|
| IR-A | 780 nm to 1400 nm | High |
| IR-B | 1400 nm to 3000 nm | Medium |
| IR-C | 3000 nm to 5000 nm | Low |
The speed of electromagnetic waves in a vacuum is 3.00 × 108 m/s.
Calculate the frequency of the shortest wavelength of IR-B radiation. Show your working and give your answer to 3 significant figures.
64 exam-style questions on Edexcel GCSE Physics 4.1 Wave properties. Each one has a worked solution and a mark scheme showing where the marks go.