<ul> <li>A resonance apparatus is used in the demonstration of standing waves.</li> <li>It can be used to observe the resonance phenomena, the speed of sound in air by exploiting standing waves, resonance effects in longitudinal waves, and resonance points for a certain frequency and their relation with the standing wavelength.</li> <li>Partially fill the resonance tube with water and then sound a tuning fork of known frequency at the open upper end of the Resonance Tube.</li> <li>The water level can be adjusted until the air in the tube resonates at the same frequency as the tuning fork which increases the volume of the sound.</li> <li>Our Deluxe Resonance Apparatus has a resonance tube, a funnel, and a connecting length of tubing attached to a sturdy base with clearly written graduations on the board behind the tube.</li> </ul>