American Educational Products 7-1806 Vertical Resonance Tube Apparatus

Let your class measure the velocity of sound in air
After partially filling the resonance tube with water sound a tuning fork of known frequency at the tubes open upper end
Then the water level can be adjusted until the air in the tube resonates at the same frequency as the tuning fork increasing the volume of the sound
The apparatus consists of a water reservoir glass resonance tube marked in increments of 1mm a support stand and two clamps to hold the tube in position

Price: 208.00