A hospital patient has two different scans that use X-rays. The table shows the dose the patient received from each scan.
| Scan | X-ray dose |
|---|---|
| Scan of the abdomen | 0.009 Sv |
| Scan of the chest | 7 mSv |
Explain which scan gave the patient the greater risk of harm, and what this comparison does not show.
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.