Scientists compare the pattern of wavelengths in light from three groups of galaxies with the same pattern measured in a laboratory.
| Group | Mean increase in wavelength compared with the laboratory pattern (%) |
|---|---|
| A | 1.8 |
| B | 4.7 |
| C | 9.1 |
Give the group whose galaxies are predicted to increase their distance from the Earth by the greatest amount during the same period of time. Explain your answer.
79 exam-style questions on AQA GCSE Physics 8.2 Red-shift, covering 8.2 Red-shift. Each one has a worked solution and a mark scheme showing where the marks go.