Resonance Apparatus
Product Code : SCL-PLE-11703
Quick Answer: The Resonance Apparatus is a resonance column for finding the speed of sound in air: a graduated transparent tube with a height-adjustable water reservoir, used with tuning forks of 256–512 Hz.
Last updated: 18 October 2026
Key Features
- Graduated transparent resonance tube.
- Height-adjustable water reservoir joined by flexible tubing.
- Millimetre scale for reading the water level.
- Works with standard tuning forks from 256 to 512 Hz.
- Powder-coated cast-iron base with vertical support rod.
Technical Specifications
| Specification | Value |
|---|---|
| Resonance tube | Transparent, graduated |
| Reservoir | Height-adjustable water vessel, flexible tubing |
| Scale | Millimetre graduations |
| Tuning fork range | 256–512 Hz |
| Stand | Powder-coated cast-iron base, vertical rod |
How It Is Used
A sounding tuning fork is held over the open end while the reservoir is lowered, so the water level in the tube falls. At certain air-column lengths the sound grows loud as a standing wave forms. Students record the first and second resonance positions; their separation is half a wavelength, which with the fork frequency gives the speed of sound.
Frequently Asked Questions
Which tuning forks suit the Resonance Apparatus?
It is made for standard tuning forks in the 256–512 Hz range.
How is the air column length changed on the Resonance Apparatus?
Raising or lowering the reservoir, which is joined to the tube by flexible tubing, moves the water level up or down the graduated tube.
Related Physics Lab Equipment
See the full physics lab equipment range, or these related sound and resonance apparatus:
- Tuning Fork Set of 8
- Tuning Fork with Resonance Box
- Sonometer Apparatus
- Organ Pipe Model
- Sound Pipes Model
Export orders for the Resonance Apparatus are accepted from schools, colleges and distributors in North Macedonia, Sudan, Philippines, São Tomé and Príncipe and Côte d’Ivoire.
For a quotation on the Resonance Apparatus, contact JLab India on +91-8569909696.
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