A student shines light of one colour at a time onto an opaque coating and measures the percentage of the light that the coating reflects. The incident light has the same intensity in each test.
| Colour of incident light | Percentage of light reflected by the coating |
|---|---|
| Red | 2 |
| Orange | 2 |
| Yellow | 1 |
| Green | 2 |
| Blue | 1 |
| Indigo | 1 |
| Violet | 1 |
Explain how the coating appears in white light and predict how it appears when it is lit with only blue light.
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.