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clear;
clc;
printf("\nEx3.19\n");
//page no.-135
//given
m=9.1*10^-31;.......//mass of electron in kg
a=4*10^-10;........//length in m
E=(h^2)/(8*m*a^2)..........//lowest energy in joules
printf("\nlowest energy is 0.376*10^-18 J\n");
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