standing waves are produced in a 1.5m long closed-closed tube that\'s filed with
ID: 1591658 • Letter: S
Question
standing waves are produced in a 1.5m long closed-closed tube that's filed with air (v= 343m/s) what are the first 3 allowed frequencies to produce standing waves? (In Hz) standing waves are produced in a 1.5m long closed-closed tube that's filed with air (v= 343m/s) what are the first 3 allowed frequencies to produce standing waves? (In Hz) standing waves are produced in a 1.5m long closed-closed tube that's filed with air (v= 343m/s) what are the first 3 allowed frequencies to produce standing waves? (In Hz)Explanation / Answer
length l = 1.5 m
velocity v = 343 m/sec
in closed tube L = Lamda/4
lamda = 4L = 4 X1.5= 6 m
frequency f = v/4L =343/6 = 57.16 HZ
SECOND HARMONIC FREQUENCY F2 = 3F =171.48 HZ
third harmonic frequency F3 = 5F = 285.8 HZ
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