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Measuring the refractive index of air with a Mach-Zehnder interferometer

VP5.3.5.2
Measuring the refractive index of air with a Mach-Zehnder interferometer
Measuring the refractive index of air with a Mach-Zehnder interferometer

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Description

In the experiment P5.3.5.2, the refractive index of air is determined. To achieve this, an evacuable chamber is placed in the path of one component beam of the Mach-Zehnder interferometer. Slowly evacuating the chamber alters the optical path length of the respective component beam.

Components of equipment sets

1 47340  8  Laser optics base plate LD
1 471832 He-Ne laser, unpolarised LD
1 473412 Laser mount LD
6 473421  8  Optics base LD
2 473431  8  Holder for beam divider LD
2 473432  4  Beam divider, 50 % LD
2 473461  8  Planar mirror with fine adjustment LD
1 473471 Spherical lens, f = 2.7 mm LD
1 473485  4  Evacuable chamber LD
1 37558  4  Hand vacuum pump LD
1 667186  4  Vacuum rubber tubing, 8 mm diam. LD
1 604520  8  Connector with nipple LD
1 44153  8  Screen, translucent LD
1 30011  4  Saddle base LD
1 31102  4  Metal rule, 1 m LD
1 30002  4  Stand base, V-shaped, small LD
1 666555  4  Universal clamp 0...80 mm LD

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) P5.3.5.2 Measuring the refractive index of air with a Mach-Zehnder interferometer
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