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-rwxr-xr-x1271/CH1/EX1.41/41.txt7
-rwxr-xr-x1271/CH1/EX1.41/example1_41.sce11
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diff --git a/1271/CH1/EX1.41/41.txt b/1271/CH1/EX1.41/41.txt
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+
+ # PROBLEM 41 #
+
+ Standard formula used
+ mu = 4*n*lambda*R / D^2.
+
+ Refractive index of liquid = 1.450765. \ No newline at end of file
diff --git a/1271/CH1/EX1.41/example1_41.sce b/1271/CH1/EX1.41/example1_41.sce
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+clc
+// Given That
+lambda = 5.896e-7 // wavelength of light in meter
+D = 5.1e-3 // diameter of 16th brighter fringe in m
+R = 1 // radius of curvature in m
+// Sample Problem 41 on page no. 1.55
+printf("\n # PROBLEM 41 # \n")
+n = 16 // for sixteenth brighter fringe
+mu = 4*n*lambda*R / D^2 // calculation for refractive index of liquid
+printf("\n Standard formula used \n mu = 4*n*lambda*R / D^2.\n")
+printf("\n Refractive index of liquid = %f.",mu)