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. 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 1 471 791 Diode laser, 635 nm, 1 mW 1 313 05 Table stop-clock 1 311 77 Steel tape measure, 2 m 1 300 02 Stand base, V-shaped, small 1 301 03 Rotatable clamp 1 301 01 Leybold multiclamp 1 300 42 Stand rod, 47 cm, 12 mm diam. EXPERIMENT INSTRUCTIONS PLEASE CLICK HERE