text: Fundamental oscillation should have wavelength equal to twice the length of chord = 3 m\n\nVelocity of wave on string = sqrt (T/m(kg/m)\n                                             =sqrt (12/0.0012)\n                                             =sqrt (10000) = 100 m/s\n\nFrequency = velocity / wavelength = 100 / 3\n                                                        =  33.3 Hz