Experiment to measure the speed of sound in a resonance tube

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Experiment to measure the speed of sound in a resonance tube

Frequency(Hz)

Resonating Length±0.05 (cm)

Average Resonating Length of the tube (cm)

Resonating Length uncertainty (cm)

Trial 1

Trial 2

Trial 3

256

32.5

33.5

33

33

0.2

288

28.5

29.5

30.5

29.5

1

320

26.5

27.5

25.5

26.5

1

384

20.9

22.1

23.3

22.1

1

426

20.3

19.5

19.9

19.9

0.4

480

18.2

17.7

17.2

17.7

1

512

16.5

17.5

15.5

16.5

1

The Resonating length uncertainty for the first one is calculated below:

Resonating Length uncertainty = (maximum trial - minimum trial)/2

= (33- 32.5)/2

= 0.2

Similarly the uncertainties for all the lengths are to be calculated individually.

Processed Data

Resonating Length (cm) ±0.5

Resonating Length (m)

Resonating Length uncertainty (m)

33

0.33

0.002

29.5