Finding the velocity of sound in a tube.

AI Thread Summary
The discussion revolves around an acoustics lab experiment involving a tweeter and a tube with a piston. The user measures the distance "X" between initial and reflected sound pulses and calculates time "T" using a specific time scale. They derive a slope of 1.5 x 10^-4 from their graph but express uncertainty about the correct formula to calculate the velocity of sound. Ultimately, the user resolves their confusion independently. The conversation highlights the challenges of experimental acoustics and the importance of accurate calculations in determining sound velocity.
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I'm doing an acoustics lab, and I have a tweeter which is making sounds into a tube with a piston in it, i move the piston to different positon, and measure the distance " X ". "X " is the distance between the initial and reflected pulses. I then found time ( T ) by multiplying my "X" by the (Time/Div) which was 0.0005 s/div. I made a graph, which I'm not sure is right either, my y values (Time) range anywhere from 0.0001 s to 0.0036.

I calculated my slope and got 1.5 x 10^-4

Calculate the velocity of sound from the slope and compare your values with the accepted value of 340 m/s at 20 degrees celius. My slope is 1.5 x 10^-4.

Can anyone help me, I'm just not sure which formula to use, because I hardly have any information, any guidance at all would be appriciated. Thanks:)
 
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whoa, never mind i figured it out.
 

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