| Date | November 2012 | Marks available | 1 | Reference code | 12N.1.HL.TZ0.16 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 16 | Adapted from | N/A |
Question
P and Q are two points on a standing wave. R and S are two points on a progressive (travelling) wave.
Which of the following gives the relationship between the amplitudes of each pair of points?
Markscheme
B
Examiners report
Candidates often find this to be difficult. In a standing wave each particle has its own amplitude with that at the nodes being zero and that at the antinodes being a maximum. For a progressive wave all particles follow on from their neighbours and have the same amplitude.
Syllabus sections
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