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RESONATOR TUBE
(We no longer have this device.)








EQUIPMENT

    redball.gif (326 bytes) Resonator Tube
   




NARRATIVE
            This device consists of a variable length closed ended pipe and a tuning fork. At certain lengths of the tube, the reflected wave will interfere constructively with the incoming waves and produce a louder sound. Pour enough colored water into the tube so that some water is in the bottom of the can. Hold the vibrating tuning fork over the open end of the tube and vary the length of the air column by raising and lowering the can. Locate positions of resonance.