How are the energy and the colour of light connected?

Product No: P1418001

Principle

According to the findings of quantum physics, the energy of electromagnetic radiation (light) occurs only at discrete values. As a fundamental natural constant, Planck's constant h describes the increments of this energy gradation of light.

Task

Determine Planck's constant h by measurements and observations of light-emitting diodes.





Materiallist (Excerpt) Product Amount
Power supply 0...12 V DC/ 6 V, 12 V AC, 230 V 13505-93 1
DMM with NiCr-Ni thermo couple 07122-00 2
LED - UV, with series resistor and 4 mm plugs 09852-50 1
LED - blue, with series resistor and 4 mm plugs 09852-40 1
LED - green, with series resistor and 4 mm plugs 09852-30 1
LED - red, with series resistor and 4 mm plugs 09852-20 1
LED - IR, with series resistor and 4 mm plugs 09852-10 1
Stray light tube for LED, Di = 8 mm, l = 40 mm 09852-01 1
Connecting cord, 32 A, 750 mm, red 07362-01 3
Connecting cord, 32 A, 750 mm, blue 07362-04 2

Literature for this article als follows

Title Product Language
interTESS DVD Physik, Optik / Atomphysik 01056-00
TESS advanced Physik Handbuch Optik / Atomphysik (Schülerversuche Sekundarstufe II) 13286-01 DEU
TESS advanced Physics manual Optics/Atomic Physics 13286-02 ENG

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Product No: P1418001

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