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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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
PHYWE variable transformator DC: 0...20 V, 12 A / AC: 0...25 V, 12 A 13531-93 1,00
Lens, mounted, f +50 mm 08020-01 2,00
Fabry-Perot interferometer, for beam height 120 mm 09050-04 1,00
Connecting cord, 32 A, 750 mm, red 07362-01 1,00
Electromagnet w/o pole shoes 06480-01 1,00
Base for optical bench expert, adjustable 08284-00 2,00
Holder for Moticam, for beam height 120 mm 63300-02 1,00
Diaphragm holder, for beam height 120 mm 08040-01 1,00
Connecting cord, 32 A, 250 mm, blue 07360-04 1,00
Power supply for spectral lamps, 230 VAC/50 hz 13662-97 1,00
Lens, mounted, f +300 mm 08023-01 1,00
Lens holder, beam height 120 mm 08012-01 4,00
Connecting cord, 32 A, 1000 mm, red 07363-01 1,00
Pole pieces, drilled, conical 06480-03 1,00
Polarization specimen, mica 08664-00 1,00
Polarising filter, on stem, for beam height 120 mm 08610-01 1,00
Connecting cord, 32 A, 500 mm, red 07361-01 1,00
MOTIC Moticam 1CMOS Technology 63300-00 1,00
Iris diaphragm 08045-00 1,00
Slide mount for optical bench expert; h = 30 mm 08286-03 7,00
Digital multimeter with NiCr-Ni thermo couple 07122-00 1,00
Cadmium lamp for Zeeman effect 09050-20 1,00
Rotary table for heavy loads; for beam height 120 mm 02077-01 1,00
Connecting cord, 32 A, 500 mm, blue 07361-04 1,00
Capacitor,electrolyt.,22000 µF 06211-00 1,00
Optical bench expert, l = 1000 mm 08282-00 1,00
plateau slide mount for optical bench expert 08286-06 1,00
Connecting cord, 32 A, 250 mm, red 07360-01 1,00
Connecting cord, 32 A, 1000 mm, blue 07363-04 1,00
8 mm lens for Moticam 63300-03 1,00

Zeeman effect: introductory video

Zeeman effect: introductory video

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