clc //Given that
Beta=0.10//fringe width in cm
D=200// separation between source and screen in cm
lambda=0.00055// wavelength of incident light in cm 
//Sample Problem 1 Page No. 46
printf ("\n # Problem 1 # \n")
d= (D*lambda)/ (10*Beta)
printf (" \n Standard formula used \n  beta= lambda*D/d \n")

printf ("\n Separation between sources is %f cm. \n",d)