| Date | November 2015 | Marks available | 1 | Reference code | 15N.1.HL.TZ0.14 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 14 | Adapted from | N/A |
Question
A source emits sound of wavelength \({\lambda _0}\) and wave speed \({v_0}\). A stationary observer hears the sound as the source moves away. What are the wavelength of the sound and the wave speed of the sound as measured by the stationary observer?
Markscheme
B
Examiners report
[N/A]
