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+//Chapter-1,Example 1_4,Page 1-17
+clc()
+
+//Given Data:
+
+B=0.1*10^-2               //fringe spacing
+lam=5.893*10^-7           //Wavelength of light
+u=1.52                    //Refractive index of wedge
+
+//Calculations:
+//We know, B=lam/(2*u*theta). Here u=1
+theta1=lam/(2*u*B)          //angle of wedge in radians
+theta=theta1*3600*180/%pi   //angle of wedge in seconds
+printf('Angle of wedge is =%.0f seconds of an arc',theta)