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clear
//
//
//
//Variable declaration
h=6.6*10^-34; //planck's constant(J-sec)
m=9.1*10^-31; //mass of electron(kg)
c=3*10^8; //velocity of light(m/sec)
//Calculations
lamda=h*10^10/(m*c); //wavelength of electron(angstrom)
//Result
printf("\n wavelength of electron is %0.4f angstrom",lamda)
printf("\n answer in the book varies due to rounding off errors")
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