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diff --git a/1694/CH2/EX2.10/EX2_10.sce b/1694/CH2/EX2.10/EX2_10.sce
new file mode 100644
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+++ b/1694/CH2/EX2.10/EX2_10.sce
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+clear;
+clc;
+printf("\nEx2.10\n");
+//page no.-58
+//given
+h=6.60*10^-34;...................//planck's constant
+m=1.67*10^-27;..................//mass of neutron i  kg
+T=300;..........................//temperature in kelvin
+k=1.376*10^-23;................//boltzmann constant in joule/degree
+//As E=k*T, put in lambda=h/sqrt(2*m*E)
+
+lambda=h/sqrt(2*m*k*T)..................//wavelength in angstrom
+
+printf("\nwavelength is 1.777 angstrom\n");