What are the three longest wavelengths for standing soundwaves in a 122-cm-long

Question

What are the three longest wavelengths for standing soundwaves in a 122-cm-long tube under the following conditions. a)The tube is open at both ends. Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) What are the three longest wavelengths for standing soundwaves in a 122-cm-long tube under the following conditions. a)The tube is open at both ends. Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) b) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m) The tube is open at one end, closed at theother? Enter your answers in descendingorder separated by commas. (answer in m)

Explanation / Answer

given that length of tube = L = 122cm = 1.22m when the tube is open at both ends first harmonic wave length = 1= 2L = 2*1.22 = 2.44m second = 2= L = 1.22m third = 3= 2/3*L = 2/3 * 1.22 =0.81m      2.44m,1.22m,0.81m when the tube is open at one end first harmonic = 1= 4L = 4 * 1.22=4.88m third harmonic = 3= 4L/3= 4.88/3 =1.62m fifth harmonic = 5= 4L/5 = 0.976m     4.88m,1.62m,0.976m

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