A researcher investigates how the wavelength of shear waves in a synthetic tissue gel varies with the frequency of the source vibration.
The table below shows the experimental results.
| Frequency in Hz | 100 | 250 | 400 | 500 | 800 |
|---|---|---|---|---|---|
| Wavelength in mm | 41.5 | 16.2 | 10.4 | 7.8 | 5.2 |
Plot a graph of the results on the grid below.
Draw the curve of best fit.
Use your graph to find the frequency of shear waves that have a wavelength of 13 mm in the tissue gel.
Describe the relationship between frequency and wavelength shown by the graph.
Suggest how the researcher could improve the reliability of their results.
State the equation linking wave speed, frequency, and wavelength.
Calculate the speed of shear waves in the tissue gel for a wavelength of 15 mm and a frequency of 280 Hz.
