, one of the students inadvertently shifted, without noticing, the rod with the

Question

, one of the students inadvertently shifted, without noticing, the rod with the microphone a little bit inward into the sound tube. At the same other conditions as described in problem 1, the speed of sound was determined as 273.1 m/s by direct measurement of the travel time of a sound pulse for 8 bi-directional traverses along the sound tube. Because of the discrepancy with the experimental result from the previous method, the partners examined the setup, and found what was the cause. What distance was shifted the microphone if both methods produce the same accuracy.

Explanation / Answer

332/273.1=1.18 m assuming speed of sound is 332 m/s

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