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clear
//
//
//
//Variable declaration
h=6.63*10^-34; //planck's constant(J-sec)
m=1.673*10^-27; //mass of proton(kg)
v=10^4; //velocity of proton(m/sec)
V1=100; //potential difference in 1st case(V)
V2=10000; //potential difference in 2nd case(V)
V3=6400; //potential difference in 3rd case(V)
//Calculations
lamda1=12.25/sqrt(V1) //de-broglie wavelength in 1st case(angstrom)
lamda2=12.25/sqrt(V2) //de-broglie wavelength in 2nd case(angstrom)
lamda3=12.25/sqrt(V3) //de-broglie wavelength in 3rd case(angstrom)
lamda4=12.25/sqrt(V2) //de-broglie wavelength in 4th case(angstrom)
lamda5=h/(m*v); //de-broglie wavelength of proton(m)
//Result
printf("\n de-broglie wavelength in 1st case is %0.3f angstrom",lamda1)
printf("\n de-broglie wavelength in 2nd case is %0.3f angstrom",lamda2)
printf("\n de-broglie wavelength in 3rd case is %0.3f angstrom",lamda3)
printf("\n de-broglie wavelength in 4th case is %0.3f angstrom",lamda4)
printf("\n de-broglie wavelength of proton is %0.4f angstrom",lamda5*10^10)
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