Product details

Zeeman effect with electromagnet

Zeeman effect with electromagnet

Item no.: P2511005

Experiment Type: Teacher Experiment, Laboratory Experiment

Expenditure of Time print
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  • Scope of Supply
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  • Videos

Principle

The "Zeeman effect" is the splitting up of the spectral lines of atoms within a magnetic field. The simplest is the splitting up of one spectral line into three components called the "normal Zeeman effect". In this experiment the normal Zeeman effect as well as the anomalous Zeeman effect are studied using a cadmium spectral lamp as a specimen. The cadmium lamp is submitted to different magnetic flux densities and the splitting up of the cadmium lines (normal Zeeman effect 643.8 nm, red light; anomalous Zeeman effect 508,6nm, green light) is investigated using a Fabry-Perot interferometer. The evaluation of the results leads to a fairly precise value for Bohr's magneton.

Tasks

  1. Using the Fabry-Perot interferometer and a selfmade telescope the splitting up of the central line into different lines is measured in wave numbers as a function of the magnetic flux density.
  2. From the results of point 1. a value for Bohr's magneton is evaluated.
  3. The light emitted within the direction of the magnetic field is qualitatively investigated.

What you can learn about

  • Bohr's atomic model
  • Quantisation of energy levels
  • Electron spin
  • Bohr's magneton
  • Interference of electromagnetic waves
  • Fabry-Perot interferometer

Software included. Computer not provided.

Device Name Item no. Qty
Lens holder 08012-00 0,00
Lens, mounted, f +50 mm 08020-01 2,00
Lens, mounted, f +300 mm 08023-01 1,00
Iris diaphragm 08045-00 1,00
Optical bench expert, l = 1000 mm 08282-00 1,00
Base for optical bench expert, adjustable 08284-00 2,00
Polarising filter, on stem 08610-00 0,00
Polarization specimen, mica 08664-00 1,00
Cadmium lamp for Zeeman effect 09050-20 1,00
PHYWE variable transformator DC: 0...20 V, 12 A / AC: 0...25 V, 12 A 13531-93 1,00
Power supply for spectral lamps, 230 VAC/50 hz 13662-97 1,00
MOTIC Moticam 1CMOS Technology 63300-00 1,00
Holder for Moticam on optical bench and optical base plate 63300-01 0,00
Capacitor,electrolyt.,22000 µF 06211-00 1,00
Electromagnet w/o pole shoes 06480-01 1,00
Pole pieces, drilled, conical 06480-03 1,00
DMM with NiCr-Ni thermo couple 07122-00 1,00
Connecting cord, 32 A, 250 mm, red 07360-01 1,00
Connecting cord, 32 A, 250 mm, blue 07360-04 1,00
Connecting cord, 32 A, 500 mm, red 07361-01 1,00
Connecting cord, 32 A, 500 mm, blue 07361-04 1,00
Connecting cord, 32 A, 750 mm, red 07362-01 1,00
Connecting cord, 32 A, 1000 mm, red 07363-01 1,00
Connecting cord, 32 A, 1000 mm, blue 07363-04 1,00
8 mm lens for Moticam 63300-03 1,00
Diaphragm holder, for beam height 120 mm 08040-01 1,00
Rotary table for heavy loads; for beam height 120 mm 02077-01 1,00
Fabry-Perot interferometer, for beam height 120 mm 09050-04 1,00
Lens holder, beam height 120 mm 08012-01 4,00
Slide mount for optical bench expert; h = 30 mm 08286-03 7,00
High precision slide mount for optical bench expert, h = 30 08286-04 1,00

Zeeman effect: introductory video

Zeeman effect: introductory video

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