Photo Electric Apparatus
Product Code : EL-PLE-14986
Eduscope India is a leading Photo Electric Apparatus
The Photo Electric Apparatus from Eduscope India is a precision teaching instrument built to demonstrate the photoelectric effect - the classic experiment behind Einstein's photoelectric equation and the quantized, particle-like nature of light, part of our range of Physics Lab Equipment for undergraduate and postgraduate laboratories. Quick Answer: this rail-mounted apparatus uses a 20W halogen lamp through 5 narrow-band interference filters (404-578nm) onto a vacuum photo tube, with a 0-10V control unit for measuring photocurrent - advanced physics lab equipment India universities use for quantum-physics teaching.
Note: this is a distinct instrument from our Photoelectric Effect Apparatus - both study the photoelectric effect but are separate product configurations, so please confirm specifications when ordering.
Construction and Specifications
It uses a halogen light source directed through a rotating filter wheel of narrow-band interference filters onto a vacuum photo tube, letting students observe how the resulting photocurrent and stopping voltage change with the wavelength, and hence frequency, of the incident light rather than with its intensity - a direct, hands-on verification of the quantum nature of light, and the kind of reliable laboratory equipment school India and university physics departments use for advanced quantum teaching. The lamp house, filter wheel, and photo tube housing are mounted together on a rigid optical rail, keeping the light source, wavelength filter, and photosensitive detector in precise, reproducible alignment throughout the experiment. The halogen lamp illuminates the filter wheel so that a single narrow-band wavelength is selected at a time and directed onto the vacuum photo tube, which sits inside the tube housing shielded from stray ambient light. The lamp is driven through a regulated power supply offering 0-2V variable voltage with a built-in ammeter and toggle switch, while the resulting photoelectric current is read out on a dedicated control unit capable of applying up to 0-10V and resolving currents across the nano- to micro-ampere range, allowing photocurrent versus retarding voltage to be recorded at each wavelength setting.
Technical Specifications
| Parameter | Specification |
|---|---|
| Rail Platform | Approx. 500mm, anodized aluminium alloy |
| Light Source | Tungsten halogen lamp, 20W output |
| Interference Filters | 5 narrow-band filters: 404, 450, 505, 546, 578nm |
| Photosensitive Device | Vacuum photo tube |
| Control Unit | 0-10V range, nano- to micro-ampere current measurement |
Related Instruments
This apparatus pairs well with our Franck-Hertz Apparatus II and Zeeman Effect Apparatus for further modern/quantum physics experiments.
Eduscope India regularly exports the Photo Electric Apparatus and related modern-physics instruments to schools, colleges, and universities across Egypt, Morocco, Tunisia, and Algeria, with careful export packing and complete documentation for every consignment.
We also support bulk buyers - school chains, CSR-funded science lab programs, and education distributors - who need multiple apparatus units for classroom use, with tender-ready specifications and volume pricing available on request.
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Schools, colleges, universities, and laboratory suppliers looking to add the Photo Electric Apparatus to their physics curriculum or export order can Contact Us for pricing, bulk-order support, and shipment documentation.
