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Determining the gravitational constant with the gravitation torsion balance after Cavendish - Measuring the excursion with a light pointer

P1.1.3.1
Determining the gravitational constant with the gravitation torsion balance after Cavendish - Measuring the excursion with a light pointer Diagram of light-pointer configuration (P1.1.3.1)
Determining the gravitational constant with the gravitation torsion balance after Cavendish - Measuring the excursion with a light pointer
Determining the gravitational constant with the gravitation torsion balance after Cavendish - Measuring the excursion with a light pointer Oscillations of the gravitation torsion balance around the final equilibrium position SII (P1.1.3.1)
Determining the gravitational constant with the gravitation torsion balance after Cavendish - Measuring the excursion with a light pointer Diagram of light-pointer configuration (P1.1.3.1)
Determining the gravitational constant with the gravitation torsion balance after Cavendish - Measuring the excursion with a light pointer
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Determining the gravitational constant with the gravitation torsion balance after Cavendish - Measuring the excursion with a light pointer

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Description

In the experiment P1.1.3.1, the light pointer is a laser beam which is reflected in the concave reflector of the torsion balance onto a scale. Its position on the scale is measured manually point by point as a function of time.

Components of equipment sets

1 332 101 Gravitation torsion balance LD
1 471 791  8  Diode laser, 635 nm, 1 mW LD
1 313 27 Hand-held stop-watch, 60s/0.2s LD
1 311 78  4  Tape measure 2 m / 1 mm LD
1 300 02  4  Stand base, V-shaped, small LD
1 301 03  8  Rotatable clamp LD
1 301 01  4  Leybold multiclamp LD
1 300 42  4  Stand rod, 47 cm, 12 mm diam. LD
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