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clear
//
//
//
//Variable declaration
lamda=5890*10**-8 //wavelength(cm)
dlamda=6*10**-8 //difference in wavelength(cm)
w=2 //width(cm)
n=425 //number of lines on grating
k=2 //order
//Calculation
N=w*n //number of lines on grating
N1=int((lamda/dlamda)) //number of lines required for resolution
N2=int((lamda/(k*dlamda))) //number of lines required for resolution
//Result
printf("\n number of lines required for resolution is %0.3f and number of lines on grating is %0.3f ",N1,N)
printf("\n hence lines will not be resolved")
printf("\n number of lines required for resolution is %0.3f and number of lines on grating is %0.3f ",N2,N)
printf("\n hence lines will appear resolved")
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