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clear
//
//
//
//Variable declaration
N=6000*10**2 //number of lines/m
m=3 //order
lamda1=500*10**-9 //wavelength(m)
lamda2=510*10**-9 //wavelength(m)
//Calculation
sintheta1=m*N*lamda1
theta1=asin(sintheta1)*180/%pi //angle(degrees)
sintheta2=m*N*lamda2
theta2=asin(sintheta2)*180/%pi //angle(degrees)
theta=theta2-theta1 //angular separation(degrees)
//Result
printf("\n angular separation is %0.2f degrees",theta)
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