"Distance down in air (.05 cm) d1" "Distance across in air (.05 cm) x1" "Angle of Incidence (1°) 1" "Distance down in solution (.05 cm) d" "Distance across in solution (.05 cm) x" "Angle of refraction (1° ) 2" 20 32 57.99 8.9 8.4 43.34 20 32 57.99 8.9 8.1 42.31 20 32 57.99 8.9 8 41.95 20 32 57.99 8.9 7.5 40.12 20 32 57.99 8.9 7.4 39.74 20 32 57.99 8.9 7.3 39.36 20 32 57.99 8.9 7.1 38.58 20 32 57.99 8.9 6.8 37.38 20 32 57.99 8.9 6.5 36.14 20 32 57.99 8.9 6.1 34.43