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diff --git a/2243/CH3/EX3.8/Ex3_8.sce b/2243/CH3/EX3.8/Ex3_8.sce
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+clc();
+clear;
+//Given :
+lambda = 6058;// Wavelength of light in A
+deltalambda1 = 0.01; // line width for a krypton source in A
+deltalambda2 = 0.00015; // line width for a laser source in A
+// The maximum number of fringes is given by n_max = lambda/deltalambda
+// (a) For a krypton source :
+n_max1 = lambda/deltalambda1 ;
+// (b) For a laser source :
+n_max2 = lambda/deltalambda2;
+printf("The maximum number of fringes observable are :\n\n");
+printf("(a) For a krypton source : %d \n\n",n_max1);
+printf("(b) For a laser source : %d \n\n",n_max2);
+
+