Quick Answer: The Resonance Tube is a 1 metre long, 50 mm diameter tube with a high power sound wave generator at one end, used for resonance investigations in air columns and, at higher amplitude, Kundt's tube work.
Last updated: October 2026
Key Features
Main tube 1 metre long and 50 mm in diameter
High power sound wave generator plugs into one end
Generator driven by a standard laboratory signal generator
Open pipe, or variable length closed pipe using the piston assembly
Kundt's tube investigations with fine cork or polystyrene dust
Supplied with instructions, closing bung, two supports and the sound wave generator
Technical Specifications
Specification
Value
Tube length
1 metre
Tube diameter
50mm
Generator
High power sound wave generator
Supports
Two
About This Product
As the signal generator frequency is adjusted, the resonance modes are detected by an increase in the loudness of the note. For Kundt's tube work, fine cork or polystyrene dust spread through the tube gathers at the nodes at resonance, so wavelengths can be measured.
Frequently Asked Questions
Q1. Why use a closed tube? A closed tube is preferable to get a good response, reducing sound levels in the laboratory while still producing a measurable effect.
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