A student investigates visible light passing between two layers of transparent liquid. The light travels through liquid P and meets the boundary with liquid Q at an angle to the normal. The frequency of the light is 4.5 × 1014 Hz.
| Liquid | Speed of light in the liquid in m/s\text{m/s}m/s |
|---|---|
| P | 2.4 × 108 |
| Q | 1.8 × 108 |
Explain how the direction of the light changes as it passes from liquid P into liquid Q.
Calculate the wavelength of the light in liquid Q.
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.