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Unformatted text preview: Answer Form Experimental Problem No. 2 Birefringence of mica Task 2.1 a) Experimental setup for I P . (0.5 points) Task 2.1 b) Experimental setup for I O . (0.5 points) 2.1 1.0 Experimental setup for measurement of mica birefringence Task 2.2 The scale for angles. 2.2 The angle between two consecutive black lines is θ int = 3.6 degrees because there are 100 lines. 0.25 Tasks 2.3 Measuring I P and I O .Use additional sheets if necessary. TABLE I (3 points) θ (degrees) I P ± 1 ( 29 × 10- 3 V I O ± 1 ( 29 × 10- 3 V-3.6 46.4 1.1 0 48.1 0.2 3.6 47.0 0.6 7.2 46.0 2.0 10.8 42.3 4.9 14.4 38.2 9.0 18.0 33.9 12.5 21.6 27.7 17.9 25.2 23.4 22.0 28.8 17.8 27.0 32.4 12.5 31.7 36.0 8.8 34.8 39.6 5.2 38.0 43.2 3.6 39.4 46.8 3.2 39.6 50.4 4.5 38.7 54.0 6.9 36.6 57.6 10.3 33.6 61.2 14.7 29.4 64.8 20.1 24.7 68.4 25.4 19.7 72.0 30.5 14.7 75.6 36.6 10.2 79.2 40.7 6.1 82.8 44.3 3.2 86.4 46.9 1.0 90.0 47.8 0.2 93.6 47.0 0.4 97.2 45.7 2.0 Parallel I P and perpendicular I O intensities vs angle θ . GRAPH NOT REQUIRED! Task 2.4 Finding an appropriate zero for θ . 2.4 a) Graphical analysis The value for the shift is δ θ = - 1.0 degrees . Add the graph paper with the analysis of this Task. b) Numerical analysis From Table I choose the first three points of θ and I O ( θ ) : (intensities in millivolts) x 1 , y 1 ( 29 =- 3.6,1.1 ( 29 x 2 , y 2 ( 29 = 0,0.2 ( 29 x 3 , y 3...
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