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Using the two measured pipe lengths (L1= 66cm and L2=40 cm), work out the wavelength of the sound wave

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Using the two measured pipe lengths (L1= 66cm and L2=40 cm), work out the wavelength of the sound wave. use this to determine the mode nnumbers and speeds of sound that the two lengths correspond to. You can assume that L1 and L2 represent neighboring resonances (i.e, n and n+2). the pipes are open on one end and closed on the other. frequeny of tuning fork is 384 Hz.