Quick Answer: Kundt’s Tube is a transparent resonance tube for studying standing sound waves. Fine powder inside the tube collects at the nodes, so students can see the wave pattern and work out wavelength and the velocity of sound.
Last updated: October 2026
Key Features
Transparent resonance tube for clear observation
Powder pattern marks nodes of the standing wave
Used to measure wavelength and velocity of sound
Covers longitudinal waves and resonance
Technical Specifications
Specification
Value
Tube type
Transparent resonance tube
Working method
Observation of powder pattern formed by standing waves
Application
Study of sound waves, standing waves and resonance
Sound waves cannot be seen, but the powder heaps in Kundt’s Tube make the spacing of nodes visible. Measuring that spacing for a known frequency links frequency, wavelength and the speed of sound in air or another gas, a standard acoustics practical in college physics. The Kundt’s tube can be supplied on export terms to Palestine, Guinea, Somalia, Honduras and Haiti.
Frequently Asked Questions
How does Kundt’s Tube show where the nodes are?
Fine powder or light particles in the tube are moved by the vibration and collect at the nodes of the standing wave.
