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+// Scilab Code Ex4.21:: Page-4.35 (2009)
+clc; clear;
+m = 15;     // Amount of sugar, g
+S = 66; // Specific rotation of sugar solution from the given data, degrees
+l = 20;     // Length of the tube, cm
+V = 100;     // Volume of sugar solution, cc
+c = m/V;     // Concentration of sugar, g/cc
+// As S = 10*theta/(l*c), solving for theta
+theta = S*l*c/10;       // Angle of rotation of the plane of polarization, degrees
+
+printf("\nThe angle of rotation of the plane of polarization = %4.1f degrees", theta);
+
+// Result 
+// The angle of rotation of the plane of polarization = 19.8 degrees 
+
+