L1 =1/4 h, L2= 3/4h, L3= 5/4h , L4= 7/4h Above written equation provide a means to determine the end correction for the tube. Using the value of the average h for the first tuning fork, calculate values for L1 and L2 from those equations. They should be larger than the measured values by an amount equal to the end correction. Repeat the calculation for the second tuning fork. Compare these values for the end corrections and comments on the consistency of the results.