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//Chapter-1,Example 1_20,Page 1-45
clc()
//Given Data:
n=10 //10th dark ring
D10=0.6*10^-2 //Diameter of ring
lam=6*10^-7 //wavelength of light
u=4/3 //Refractive index of water
//Calculations:
//As Dn^2=4*n*R*lam/u
R=D10^2*u/(4*n*lam) //Radius of curvature of the lens
printf('Radius of curvature of the lens is =%.1f m \n',R)
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