Astronomers want to observe the same region of space using radio, visible-light and ultraviolet detectors. Only one detector can be placed in orbit. The other two detectors must be installed at a ground observatory.
The table shows the percentage of radiation entering the top of the atmosphere that reaches the ground observatory.
| Type of radiation | Percentage reaching the ground observatory |
|---|---|
| radio | 96% |
| visible light | 84% |
| ultraviolet | 2% |
Explain where the three detectors should be placed. Use data from the table in your answer.
75 exam-style questions on Edexcel GCSE Physics 7.3 Stars, covering 7.3.1 Evolution of stars similar to the Sun, 7.3.2 Evolution of massive stars, and 7.3.3 Observing the Universe. Each one has a worked solution and a mark scheme showing where the marks go.