// Scilab Code EX3.45:: Page-3.58 (2009) clc;clear; lambda = 5500e-010; // Wavelength of light used, m a = 0.01; // Diameter of objective of telescope, m f = 3.0; // Focal length of tlescope objective, m // For telescope, the limit of resolution, // theta = x/f = 1.22*lambda/a, solving for x x = 1.22*lambda/a*f; // Distance between centres of imgaes of the two stars printf("\nThe distance between centres of imgaes of the two stars = %4.2e m", x); // Result // The distance between centres of imgaes of the two stars = 2.01e-04 m