Planck Constant Determination Box
Product Code : JA-APE-7292
The Planck Constant Determination Box (SKU JA-APE-7292) finds an approximate value of Planck's constant from the elbow voltage in the characteristic curves of a set of LEDs. Seven LEDs, from deep blue at 470 nm to near infrared at 940 nm, are mounted on the box with sockets for voltage and current measurement. This Planck constant box with seven LEDs is a compact practical for class 12, B.Sc and engineering physics laboratories.
Specifications
The box carries seven LEDs covering 470 nm (deep blue) to 940 nm (near infrared), with sockets for voltage and current measurements, and runs from an external 9 V power source or 9 V battery with connecting leads.
| Product | Planck Constant Determination Box |
| SKU | JA-APE-7292 |
| Method | Elbow (turn-on) voltage in LED characteristic curves |
| LEDs | Seven, from deep blue 470 nm to near infrared 940 nm |
| Connections | Sockets for voltage and current measurement |
| Power | External 9 V power source or 9 V battery (required, not listed as included) |
| Leads | Connecting leads required |
Applications of the Planck constant determination box
By monitoring the voltage at which each LED begins to emit light and plotting that energy against the frequency of the emitted light, students obtain an approximate value of Planck's constant from the slope of the graph.
- Determining an approximate value of Planck's constant
- Plotting I-V characteristic curves of LEDs and locating the elbow voltage
- Relating photon energy to wavelength from 470 nm to 940 nm
- Class 12 physics projects and B.Sc and engineering physics practicals
- Introducing quantum ideas with low-cost equipment
Scope of supply
The listing covers the determination box with seven mounted LEDs and measurement sockets. A 9 V power source or battery, meters and connecting leads are required and are quoted separately. Accessories, spares and quantities are confirmed on the quotation.
Packing, MOQ and lead time
Minimum order quantity, lead time and packing are confirmed on each quotation according to the quantity and the delivery destination. JaincoLab supplies schools, colleges and universities, education-project orders and export consignments to buyers in Africa, the Middle East and South and South-East Asia.
JaincoLab supports tender contractors as well as institutions: we manufacture and export laboratory equipment for Ministry of Education projects, World Bank-funded tenders and United Nations programmes, executed successfully in many countries, and we specialise in turnkey laboratory set-ups. Contact us through the tenders page early in your bid preparation.
Frequently asked questions
Which LEDs are on the box?
Seven LEDs covering deep blue at 470 nm to near infrared at 940 nm.
How is Planck's constant found?
From the voltage at which each LED begins to emit light, plotted against the frequency of the light emitted.
What else is required?
An external 9 V power source or 9 V battery, meters and connecting leads.
What should a quotation request include?
Send the SKU JA-APE-7292, the quantity, any meters or power supply needed, and the delivery destination.
Related products
See the Atomic Physics Equipment range from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Planck Constant Determination Box, send the quantity and delivery destination through the JaincoLab contact page or email [email protected].
