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. The model is manufactured by Science Lab Supplies at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and that factory sends quotations to schools, colleges, tender contractors and distributors.
Specifications
Dimensions, vibrator data and mechanism of the wave model are set out row by row. In short, metal rods resting on eccentric discs rise and fall in sequence as a handle turns, forming a transverse wave, bent rods give a longitudinal wave, and the 450 x 200 x 300 mm wave section has a vibrator rated 0–6 V.
| Specification | Value |
|---|---|
| SKU | SCL-PL-11836 |
| Wave types | Transverse and longitudinal |
| Wave section dimensions | 450 x 200 x 300 mm |
| Voltage | 0–6 V |
| Vibrator diameter | 15.6 mm |
| Number of vibrations | 13 |
| Pulleys | 2, aluminium |
| Transverse mechanism | Eccentric discs carrying metal rods, turned by a handle |
| Longitudinal mechanism | Bent rods |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Wave Propagation Apparatus
Turning the handle slowly lets the class follow a crest travelling along the rods, and the bent rods then 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, linked to real sound from a Tuning Fork Set on its resonance box.
- Class 11 physics: transverse and longitudinal waves, wavelength and amplitude.
- B.Ed. and teacher-training demonstrations of wave motion, alongside a 10 W Demonstration Loudspeaker for sound topics.
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). A wave-model quotation can be requested from the contact page or by sending your enquiry cart, and bid paperwork is described on 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 works at 0–6 V, with a vibrator diameter of 15.6 mm, while the rod model itself is turned by hand from its handle, so the mechanical wave can be shown at any speed.
Is Science Lab Supplies the manufacturer or a trader?
The wave model is built at the Science Lab Supplies factory in Saha, Ambala, India, which makes the company its manufacturer; technical questions and prices are therefore answered by the maker 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, rod machines, a Powell-type demonstrator, water-wave tanks and string vibration. Used together they let a class compare mechanical models of waves, and all of them can be quoted with this apparatus on one sheet.
- Apparatus for Demonstrating Waves with Elastic Springs — 8 cm spring extending to 5 m, plus 16 cam-driven rods with a degree scale.
- Wave Machine — 24 cam-driven rods, eight turned at 90 degrees, on a 480 mm frame.
- Wave Motion Powell’s Wave Demonstrator — offset eccentrics on a metal crankshaft in a wooden or metal frame.
- Apparatus for Demonstrating the Phenomenon of Wave Propagation and Reflection — water tank with waves excited by two forks.
- Ripple Tank kit — LED strobe and variable vibrator, projecting onto a 30 x 33 cm screen.
- Mechanical-Wave Apparatus Package — Chladni plates, wave spring, cord and a sine-wave generator.
- Melde's String Vibration Apparatus — electromechanical vibrator on a rigid base plate for standing waves.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 22 October 2026
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