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+//Chapter 1 : Wave Optics
+
+clear;
+
+//Variable declaration
+lamda=5890*10**-8    //wavelength
+myu=1.5              //refractive index of glass
+n=1                  //first minimum
+r=60                 //angle in degrees
+
+//Calculations
+t=(n*lamda)/(2*myu*0.5)/10**-5
+
+//Result
+mprintf("Minimum thickness of the film t= %.5f*10**-5 cm",t)
+//The answer provided in the textbook is incorrect
+