clear clc disp('Ex-13.1') v=1*1*10^-6*10^2; p=7.9; m=p*v;Na=6.023*10^23 //given values and various constants in suitable units M=56;N=m*Na/M; //number of atoms i=3*10^-6; q=1.6*10^-19; Io=i/q; //intensity s=0.6*10^-24;S=1; //given values in suitable units R=N*s*Io/S; //rate of neutrons printf('The rate of neutrons emitted from the target is %.2e particles per second',R);