A transverse progressive wave is produced on a string. The graph illustrates how the displacement of one point on this string changes with time. The distance XY on the graph represents the ......1...... of the wave. X and Y have the same ......2...... . Which words correctly fill gaps 1 and 2?
- A1 time period, 2 amplitudes
- B1 time period, 2 displacements
- C1 wavelength, 2 amplitudes
- D1 wavelength, 2 displacements