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// Scilab Code Ex3.2 : Page-71 (2010)
lambda1 = 4250e-010; // First wavelength emitted by source of light, m
lambda2 = 5050e-010; // Second wavelength emitted by source of light, m
D = 1.5; // Distance between the source and the screen, m
d = 0.025e-03; // Distance between the slits, m
n = 3; // Number of fringe from the centre
x3 = n*lambda1*D/d; // Position of third bright fringe due to lambda1, m
x3_prime = n*lambda2*D/d; // Position of third bright fringe due to lambda2, m
printf("\nThe separation between the third bright fringe due to the two wavelengths = %4.2f cm", (x3_prime - x3)/1e-02);
// Result
// The separation between the third bright fringe due to the two wavelengths = 1.44 cm
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