Which row is not correct for a periodic wave on a stretched string?
| Quantity | Usual unit | |
|---|---|---|
| A | frequency | Hz\text{Hz}Hz |
| B | period | TTT |
| C | wave speed | m/s\text{m/s}m/s |
| D | wavelength | m\text{m}m |
A
B
C
D
237 exam-style questions on CIE IGCSE Physics General properties of waves, covering General properties of waves. Each one has a worked solution and a mark scheme showing where the marks go.