The water level started at 10, then went to 15 cm and lastly to 15.5 cm Addition
ID: 1289598 • Letter: T
Question
The water level started at 10, then went to 15 cm and lastly to 15.5 cm
Additional data collected for this, includes: #1- 26cm #2- 36.5 cm #3- 48 cm
Wavelength at 256 Hz.
Any help that can be given is appreciated! This is VERY confusing to me. I do better with very simplistic instructions. Evaluation: The air column length measured for the first resonance is too small, because the antinode of the standing wave is not located exactly at the mouth of the tube due to diffraction and other effects. However, the differences between successive length measurements accurately represent values for lambda/2. You should be able to obtain between 2 and 5 estimates of lambda/2, depending on the frequency you are using. Calculate values for lambda for each of the frequencies you measured. The frequencies marked on the tuning fork and the Sound Generator buttons are accurate to within 1 Hz. Using the equation: c ? f.lambda where c is the speed of sound and f is the frequency of the sound whose wavelength is lambda, calculate values for the speed of sound from your measurements. The speed of sound in air varies noticeably with temperature and less sensitively with the relative humidity. The humidity variation can be ignored, but it is important to correct for temperature variation. To a good approximation, the speed of sound in free, dry air is given by c 331.5 + 0.607T m/s where T is the air temperature in degrees Celsius. Compare the temperature measurements before and after the experiment, and using an average value if necessary, calculate the speed of sound in air during your experiment. Compare this with your measured values and estimate the errors in your measurements. Do you expect that the speed of sound in a narrow tube will be the same as in free air? Using your value for the speed of sound, calculate the expected column lengths for the first resonance at lambda/4 for each frequency you measured. Compare these values with your measurements of these resonance lengths and obtain values for the end correction for comparison with the value given on page 1. Comment on any discrepancy you observe. The water level started at 10, then went to 15 cm and lastly to 15.5 cm Additional data collected for this, includes: #1 - 26cm #2 - 36.5 cm #3 - 48 cm Wavelength at 256 Hz. Any help that can be given is appreciated! This is VERY confusing to me. I do better with very simplistic instructions.
Explanation / Answer
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