level: Waves
Questions and Answers List
level questions: Waves
| Question | Answer |
|---|---|
| Wave speed | Freq x wave length |
| Time period | 1 / Freq |
| Definition of a period | Time taken for one complete oscillation |
| Definition of frequency | number of complete oscillations per second (passing a point (If its progressive)) |
| 2 Frequency equations | wave speed / wave length 1 / time period |
| De Broglie's wavelength | wavelength = h / mv |
| What is phase difference | Phase difference is the difference between two points on a wave. measured in degrees or radians |
| How can a wave be out of phase | When the trough of a wave meets the peak of another wave. if the exact peak and exact trough meet then the resulting amplitude will be zero and they'll be totally out of phase |
| What is polarization | The production of waves oscillating in one direction from a source that produces random oscillating waves |
| What is a progressive wave | A wave that travels continuously in a medium and doesn't change amplitude. E.g wave on a string experiment |