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23.The two nearest harmonic of a tube closed at one end and open at other end are 220hz and 260Hz. What is the fundamental frequency of the system 1)10Hz 2)20Hz 3)30Hz 4)40Hz |
| Answer» 23.The two nearest harmonic of a tube closed at one end and open at other end are 220hz and 260Hz. What is the fundamental frequency of the system 1)10Hz 2)20Hz 3)30Hz 4)40Hz | |