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diff --git a/1694/CH2/EX2.29/EX2_29.sce b/1694/CH2/EX2.29/EX2_29.sce
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+clear;
+clc;
+printf("\nEx2.29\n");
+//page no.-72
+//given
+v=1.05*10^4;..............//speed of e in m/s
+m=9*10^-31;......//mass of e
+h=6.62*10^-34;......//planck's constant
+del_v=0.0001;........//change in velocity
+
+p=m*v;.................//momentum in kg*m/sec
+
+del_p=p*del_v..........//change in momentum in kg*m/sec
+//By Heisenberg's uncertainty principle
+
+del_x=h/(2*%pi*del_p)...............//uncertainty in position in m
+
+printf("\nminimum uncertainty in position is 1.115*10^4 m\n");