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Principle
Electrons are accelerated in a tube filled with mercury vapour. The excitation energy of mercury is determined from the distance between the equidistant minima of the electron current in a variable opposing electric field.
Benefits
- Experience the essence of the Nobel Price: Franck, Hertz (1925)
- Classical Version with Mercury (Hg)
- One operating unit for 2 experiments (Hg, Ne)
- Precise determination of electron excitation energy of Hg
- Direct connection to computer, no extra interface necessary
Tasks
- To record the countercurrent strength Ι in a Franck-Hertz tube as a function of the anode voltage U.
- To determine the excitation energy E from the positions of the current strength minima or maxima by difference formation.
Learning objectives
- Energy quantum
- Electron collision
- Excitation energy
Device name
Item No.
Quantity
Name
Filename
Filesize
Filetyp
(de) Versuchsbeschreibung deutsch
p2510311d .pdf
Filesize 0.49 Mb
pdf
(de) Versuchsbeschreibung deutsch docx
p2510311d .docx
Filesize 0.49 Mb
docx
(en) Versuchsbeschreibung
p2510311_en .pdf
Filesize 1.27 Mb
pdf
(ru) Versuchsbeschreibung
p2510311_ru .pdf
Filesize 1.45 Mb
pdf
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