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Method 1

1. Record the length L of the vibrating portion of the string (between the vibrator and the pulley).
2. Select and record a value of tension between 20-49 N. Keep it fixed during the experiment.
3. Vary the frequency of the vibrator until you observe a maximum amplitude standing wave.
4. Once satisfied with the standing wave, record the value of the frequency and the harmonic number n.
5. Repeat steps 3-4 for about 8 values of f and n and tabulates your results.
6. Plot a graph of f² versus n².
7. Include the trendline of your graph.
8. Show the equation of the line on your plot.
9. Hence using equation (4) determine the value ofm from your graph.

Method 2

1. Record the length L of the vibrating portion of the string (between the vibrator and the pulley).
2. Select and record a value of Frequency greater than 100 Hz. Keep it fixed during the experiment.
3. Vary the Tension until you observe a maximum amplitude standing wave.
4. Once satisfied with the standing wave, record the value of the tension and the harmonic number n.
5. Repeat steps 3-4 for about as many values of T and n as possible (about 8)
6. Tabulate your results.
7. Plot a graph of F versus 1/n².
8. Include the trendline of your graph.
9. Show the equation of the line on your plot.
10. Transpose of equation (4) to make F the subject of the equation.
11. Hence determine the value ofm from your graph.
12. Compare the values ofm obtained from your graphs in methods 1 and 2 with that given in the simulation.
13. Write an appropriate discussion and conclusion for your lab.