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clear
//
//
//
//Variable declaration
d=0.08*10**-2 //distance between slits(m)
beta1=6*10**-4 //fringe width(m)
c=3*10**8 //velocity of light(m/sec)
new=8*10**11*10**3 //frequency(Hz)
//Calculation
lamda=c/new //wavelength(m)
D=beta1*d/lamda //distance of screen from slits(m)
//Result
printf("\n distance of screen from slits is %0.3f m",D)
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