| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.HL.TZ1.12 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 12 | Adapted from | N/A |
Question
Wave generators placed at position P and position Q produce water waves of wavelength 4.0 cm. Each generator, operating alone, produces a wave oscillating with amplitude A at position R. Distances PR and QR are shown in the diagram below.
Both wave generators now operate together in phase. What is the amplitude of the oscillation of the resulting wave at R?
A. 0
B. A
C. A2
D. 2A
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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