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//Example number 5.11, Page number 89
clc;clear;
close;
//Variable declaration
me=9.1*10**-31; //mass(kg)
mp=1.6*10**-27; //mass(kg)
h=6.626*10**-34; //plank constant
c=3*10**10; //velocity of light(m/s)
//Calculation
lamda=h/sqrt(2*mp*me*c**2)*10**10; //de broglie wavelength(m)
//Result
printf("de broglie wavelength is %.5e Angstrom",lamda)
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