Purpose: To verify the linear relationship between the length and the resonant frequency of an air column In a closed tube and to determine the speed of sound in alr. Materials: Resonance tube apparatus Set of tuning forks Thermometer Ruler Observations: Diameter of the tube = 0.025m + 0.005m Fig. 1 Resonant Lengths and Tuning Fork Frequency Frequency (Hz) Length L (m) 480.0 0.167 512.0 0.152 320.0 0.257 341.3 0.241 426.7 0.188 256.0 0.326 Analysis: Graph: Calculating the slope: Experimental and theoretical speed of sound: Percentage Error in Speed of Sound: Conclusions: The speed of sound in our experiment was 356 m/s (with a 4% error) Discussion: 1. Why was the slope of the entire graph used instead of just using one tuning fork result to find the speed of sound? 2. What was the y intercept? How does this relate to the diameter of the air column? 3. Why weren't higher frequency tuning forks used for this lab? (i.e., 2048 Hz or 4096 Hz)