A computer catalogue contains these two records for electromagnetic waves.
| Record | Wavelength in nm |
|---|---|
| Q | 750 |
| R | 1000 |
The catalogue contains no records between Q and R. A technician concludes that electromagnetic waves with wavelengths between 750 nm and 1000 nm do not exist.
Explain why the technician's conclusion is incorrect.
Predict how the frequency of the waves changes from record Q to record R.
93 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.