Apparatus for Demonstrating the Propagation of Waves
Product Code : SCL-PL-11836
Apparatus for Demonstrating the Propagation of Waves (SKU SCL-PL-11836) is a wave model that shows both transverse and longitudinal waves travelling along a row of metal rods driven by eccentric discs. It helps pupils in Class 9 and Class 11 physics, and trainee teachers, see how a disturbance moves while each particle only oscillates. Science Lab Supplies is the manufacturer: the model is produced at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and dispatched direct to schools, colleges, tender contractors and distributors.
Specifications
A series of metal rods rests on eccentric discs turned from a handle, so the rods rise and fall in sequence to form a transverse wave; bent rods give a longitudinal wave. The wave section measures 450 x 200 x 300 mm, and the vibrator works at 0–6 V.
| Parameter | Value |
|---|---|
| SKU | SCL-PL-11836 |
| Wave types | Transverse and longitudinal |
| Wave range dimensions | 450 x 200 x 300 mm |
| Voltage | 0–6 V |
| Vibrator | 15.6 mm diameter; 13 vibrations |
| Pulleys | Two aluminium pulleys, no. SP251 (18) and no. SP252 (24) |
| Mechanism | Eccentric discs carrying metal rods, turned by a handle |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Wave Propagation Apparatus
Teachers turn the handle slowly so the class can follow a crest travelling along the rods, then switch to the bent rods to show compressions and rarefactions. The model makes wavelength, amplitude and the difference between wave motion and particle motion easy to point out on a single bench.
- Class 9 science: sound as a longitudinal wave, compressions and rarefactions.
- Class 11 physics: transverse and longitudinal waves, wavelength and amplitude.
- B.Ed. and teacher-training demonstrations of wave motion.
Standard Scope of Supply
The Apparatus for Demonstrating the Propagation of Waves is supplied as a single unit as described above: the rod-and-eccentric-disc wave section, handle, vibrator and the two aluminium pulleys. Any optional accessories are listed on the quotation.
Packing, MOQ and Lead Time
Whether you need one demonstration model or several for different classrooms, a quotation can be issued for that number. It lists the packing, delivery time and price, and other wave and sound apparatus can appear on the same quotation.
As an exporter holding an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Nigeria, Kenya, Ghana, Ethiopia, Tanzania and Uganda. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Questions go to the contact page, selections to the enquiry cart, and tender paperwork to the lab tender page.
Frequently Asked Questions
Which waves does this apparatus show?
Both kinds: transverse waves from the rods on the eccentric discs, and longitudinal waves from the bent rods, on a wave section of 450 x 200 x 300 mm.
What voltage does it use?
The vibrator is specified for 0–6 V. The rod model itself is turned by hand from its handle.
Is Science Lab Supplies the manufacturer or a trader?
It is the maker. The apparatus is built at the Science Lab Supplies factory in Saha, Ambala, India, so technical questions and prices are handled by the manufacturer itself.
How is it different from the elastic spring wave apparatus?
The spring version adds two long springs and a 16-rod cam model with a phase scale; this model uses eccentric discs, a 0–6 V vibrator and aluminium pulleys.
Related Wave Motion Equipment
These Physics Lab items cover the same wave-motion topic from different angles: springs, a wave machine, a Powell-type demonstrator and a propagation-and-reflection model. Used together they let a class compare mechanical models of waves, and all can be quoted with this apparatus.
- Apparatus for Demonstrating Waves with Elastic Springs — springs plus a cam-driven rod model.
- Wave Machine — another mechanical wave model.
- Wave Motion Powell’s Wave Demonstrator — a Powell-type wave demonstrator.
- Apparatus for Demonstrating the Phenomenon of Wave Propagation and Reflection — adds wave reflection.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
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