initial commit / add all books

1 files changed, 28 insertions, 0 deletions

diff --git a/1871/CH3/EX3.3/Ch03Ex3.sce b/1871/CH3/EX3.3/Ch03Ex3.sce
new file mode 100755
index 000000000..95e8805a0
--- /dev/null
+++ b/1871/CH3/EX3.3/Ch03Ex3.sce
@@ -0,0 +1,28 @@
+// Scilab code Ex3.3 : Pg:91 (2008)

+clc;clear;

+f1 = 30;    // Focal length of convex lens, cm

+f2 = -50;    // Focal length of concave lens, cm

+d = 20;    // Distance of separation between two lenses, cm

+F = f1*f2/(f1 + f2 - d);    // Focal length of the combination of lenses, cm

+// Positions of Principal Points

+alpha = F*d/f2;    // Distance of the first principal point from the first lens, cm

+bita = -F*d/f1;    // Distance of the second principal point from the second lens, cm

+// Positions of Focal Points

+L1F1 = -F*(1-d/f2);    // Distance of the first focal point from the first lens, cm

+L2F2 = F*(1-d/f1);    // Distance of the second focal point from the second lens, cm

+// Positions of Final image

+u = -25;    // Object distance from principal point, cm

+// As from thin lens formula, 1/v - 1/u = 1/F, solving for v

+v = (u*F)/(u+F);    // Image distance from principal point, cm

+m = v/u;    // Linear magnification

+printf("\nThe positions of Principal points = %2.0f cm and %4.2f cm", alpha, bita);

+printf("\nThe positions of Focal points = %4.1f cm and %4.1f cm", L1F1, L2F2);

+printf("\nThe image distance from principal point = %2.0f cm", v);

+printf("\nThe linear magnification = %1.0f cm", m);

+

+

+// Result 

+// The positions of Principal points = -15 cm and -25.00 cm

+// The positions of Focal points = -52.5 cm and 12.5 cm

+// The image distance from principal point = -75 cm

+// The linear magnification = 3 cm 
\ No newline at end of file