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diff --git a/3717/CH9/EX9.6/Ex9_6.sce b/3717/CH9/EX9.6/Ex9_6.sce
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+// Ex9_6  Page:188 (2014)
+clc;clear;
+h = 6.626e-034;    // Planck's constant, Js
+c = 3e+08;    // Speed of light in vacuum, m/s
+m = 1.673e-027;    // Mass of protium, kg
+m1 = m;    // Mass of first hydrogen atom, kg
+m2 = m;    // Mass of second hydrogen atom, kg
+nu_prime = 346;    // Wave number of the first rotational Raman line of hydrogen, per cm
+B = nu_prime*1e+02/6;    // Rotational constant of a hydrogen molecule, per m
+I = h/(8*%pi^2*B*c);    // Moment of inertia of hydrogen molecule, kg Sq.m
+mu = m1*m2/(m1 + m2);    // Reduced mass of hydrogen molecule, kg
+r = sqrt(I/mu);    // Bond length of hydrogen molecule, m
+printf("\nThe bond length of hydrogen molecule = %4.2e m", r);
+
+// Result
+// The bond length of hydrogen molecule = 7.62e-011 m 
+\ No newline at end of file