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Second and third resonating length of re...

Second and third resonating length of resonace tube experiment were observed to be 54 cm and 89 cm when vibrated with a tuning fork of frequency 480 Hz. Find
Velocity of sound

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`(3lambda)/(4) + e = 54 cm " ". . . (i)`
`(5 lambda)/(4) + e = 89 cm " ". . . (ii)`
Subtracting (i) from (ii) we get
`(lambda)/(2) = 35 cm `
`:. lambda = 0 . 7 m `
`:. V = f lambda = 336 m//s `
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