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+clear;
+clc;
+printf("\nEx2.34\n");
+//page no.-73
+//given
+h=6.63*10^-34;............//planck's constant in J-sec
+t=2.5*10^-14;.............//time required in sec
+
+//By Heisenberg's uncertainty principle, E*t=h
+
+del_E=h/(2*%pi*t).............//error in energy in joule
+
+printf("\nminimum error in energy is 4.22*10^-21 joule\n");