Physics (AS & A Level) · May / June 2023 · Paper 13 · Question 21

Graph 1 shows the variation with time of displacement at a fixed distance along a progressive wave. Graph 2 represents the same wave and shows the variation with distance of displacement at an instant in time. [graphs showing displacement against time and displacement against distance] What is the speed of the wave?

1. A5.0 cm s–1
2. B48 cm s–1
3. C150 cm s–1
4. D300 cm s–1

As printed in the paper