The tube will contain some water vapor, but that shouldn't have a large effect. Any help is appreciated!ĮDIT: Could one be that there are alternate particles (such as water) in the air and that could cause discrepencies in the speed of sound?ĭid you use a computer or your ears to find the loudest point? I'm not too sure what else I can include. ![]() My TA said the sources of error have to well thought out and not the generic ones, like my first one. Second source of error: due to human hearing, maybe I didn't hear the highest volume and it resulted in the results being altered. The percent error I obtained was 76% (very high I know, but the TA said it is expected to be that large).įirst source of error: measurement increments on the tube are inaccurate There was a tone generator at the top of the tube. The experimental setup was a long tube was placed standing up which had water in it, and it was connected to another water cup through a tube, and the water cup was moved up and down in order to determine the L at which the highest volume occurs. The first harmonic was measured through a computer system, by determining when the loudest volume was and the tube length where it occurred was recorded. Some background information: The lab consisted of playing a tone generated by a tone generator above a standing open-closed tube which had water in it. Determine sources of error which could have affected the results.
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