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+//developed in windows XP operating system 32bit
+//platform Scilab 5.4.1
+clc;clear;
+//example 16.11w
+//calculation of the minimum distance between the source and the detector for maximum sound detection
+
+//given data
+nu=180//frequency(in Hz)
+d=2//distance(in m)
+v=360//speed(in m/s) of the sound wave in air
+
+//calculation
+//path difference.....delta = (2*((2^2) + (x^2/4))^(1/2)) - (x)
+lambda=v/nu//wavelength
+delta=lambda
+//solving the above equation,we get
+x=4-1
+
+printf('the minimum distance between the source and the detector for maximum sound detection is %d m',x)