Kundt's tube is a device used in physics to study acoustics. It consists of a long glass tube filled with a fluid such as water or mercury, and a vibrating tuning fork at one end. As the tuning fork vibrates, it creates sound waves that travel down the tube and create a visible wave pattern on the surface of the fluid.
Kundt's tube may also be referred to as a Kundt's Apparatus, Kundt's Resonance Tube, or a Kundt's Demonstration Apparatus. These synonyms all refer to the same device used to study acoustics and the properties of sound waves. Students and professionals in the field of physics use Kundt's tube to conduct experiments and gain a better understanding of the physics of sound.