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Physics Waves And Oscillations Level: High School

Standing Waves

One end of a horizontal string of linear density 4.47 x 10^-4 kg/m is attached to a small-amplitude mechanical 60.5 Hz vibrator. The string passes over a pulley , a distance L = 1.59 m away , and weights are hung from this end , as seen in the figure at “click here” . What mass must be hung from this end of the string to produce one loop of a standing wave ? Assume the string at the vibrator is cathode , which is nearly true .

a) What mass must be hung from this end of the string to produce two loops of a standing wave ?