| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.SL.TZ2.15 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 15 | Adapted from | N/A |
Question
Which of the following correctly describes the direction of a ray drawn relative to a wavefront for longitudinal and transverse waves?
Markscheme
D
Examiners report
It was clear from paper 2 that candidates had no real grasp of the physical meaning of the different ways of representing a wave. They are comprised of oscillating particles, but can be represented either as ray, or as a series of wave fronts or graphically. It appears that this area of the syllabus is not being rigorously taught.
