Zeeman Effect
Item Code : SK075/SK075A
Principle and Working:
The Zeeman effect refers to the splitting of atomic energy levels under an external magnetic field, influenced by orbital and spin angular momentum or Bohr’s Magneton. In this setup, the normal Zeeman effect is studied, which demonstrates the splitting of energy levels observed as spectral lines corresponding to electron transitions. Instead of a single spectral line (as seen without a magnetic field), a triplet appears perpendicular to the magnetic field, and a doublet appears parallel to it, with a very small wavelength difference. The 546.1 nm wavelength of Mercury light splits under a strong magnetic field, and this splitting in transverse and longitudinal directions is observed via a CMOS camera on a computer. The Bohr Magneton is then calculated from the experimental measurements.
- Heavy, rigid and stable Optical bench
- Saddle can hold rod from 8 to 15mm.
- Height and level adjustment screws.
- Compact electromagnet can be used in transverse/longitudinal mode.
- High resolution Fabri-Perot etalon to detect wavelength change of 0.002nm.
- Interference filter is 546.1nm.
- High current supply with safety sockets and dual temperature control fan.
- Clear orbital splitting is observed on CMOS camera.
- To observe the Zeeman splitting of the green (546.1nm) mercury line using Fabry-Perot etalon for normal transverse and longitudinal configuration.
- Determining the polarization state of the triplet components in transverse configuration.
- Determining the polarization state of the doublet components in longitudinal configuration.
- To find the lande’s g-factor.
- Electromagnet : Ferromagnetic core, Coils 500 T, Current 5A (Max.), 4mm safety socket, U Core 150 x 130mm(LxH), 40 x 40mm, cross section, I Core L=150mm.
- Fabry Perot Etalon : Mirror optics Lamda/20, Mirror gap 3 mm, Filter 532nm, Green Interference Filter, Clear view 40mm dia, Rod 10 mm dia.
- CMOS Camera : 1.3 MP, USB Interface.
- Power Supply : 0-40V DC, 0-10A, voltage resolution 0.1V, display 3½ digit LED, current resolution 0.1 A, primary fuse 8 Amp.
- Optical bench : Length – 1 mtr. with Scale, 4 point levelling. Material Aluminium or MS.
- Optics holder : Dia. 130 x 3mm (Ø x T), H 230mm.
- Transversal slider : 25 – 0 – 25mm, LC 0.01mm.
- Digital Gauss Meter : Range 2k & 20kG, Sensor In As, Resolution 1G & 10 G at 2k & 20k G, Offset By Potentiometer to set ZERO.
| S.No. | Item Name | SK075 | SK075A |
| 1 | C-clamp with pin | 2 | 2 |
| 2 | Camera 1.3 MP with USB | 1 | — |
| 3 | Camera holder | 1 | — |
| 4 | Camera with rod | — | 1 |
| 5 | Coil 500 turns 40×40 big/black (left) | 1 | 1 |
| 6 | Coil 500 turns 40×40 big/black (right) | 1 | 1 |
| 7 | Convex lens in holder FL 100cm | 1 | 1 |
| 8 | Convex lens in holder FL 150cm | 1 | 1 |
| 9 | Convex lens in holder FL 50cm | 1 | 1 |
| 10 | Digital gaussmeter (220V) | 1 | 1 |
| 11 | Electromagnet base with support rod | 1 | 1 |
| 12 | Fabry Perot Etalon | 1 | 1 |
| 13 | Febry Perot holder | 1 | 1 |
| 14 | Filter green (546.1nm) assembly | 1 | 1 |
| 15 | Fixed slider | 6 | 6 |
| 16 | Flexible plug lead 50cm (yellow) | 1 | 1 |
| 17 | Focussing adaptor for camera | — | 1 |
| 18 | High current safety wire (black) | 1 | 1 |
| 19 | High current safety wire (red) | 1 | 1 |
| 20 | Mercury lamp (pencil type) with supply | 1 | 1 |
| 21 | Mercury tube holder | 1 | 1 |
| 22 | Micrometer eyepiece | 1 | 1 |
| 23 | Monitor 17 inch | — | 1 |
| 24 | Optical bench with levelling | 1 | 1 |
| 25 | Analyzer / Polarizer | 1 | 1 |
| 26 | Pole piece with hole | 2 | 2 |
| 27 | Power adaptor for camera | — | 1 |
| 28 | Power cord (main lead) | 2 | 2 |
| 29 | Power supply 40V, 10Amp | 1 | 1 |
| 30 | Probe holder | 1 | 1 |
| 31 | Quarter wave plate | 1 | 1 |
| 32 | Signal cable for camera | — | 1 |
| 33 | Transverse slider | 2 | 2 |
Note : Computer/Laptop is not supplied with this setup.
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