Consider two identical synchronized point sources located at x=0, y=d/2 generating sinusoidal circular waves of wavelength . Calculate the locus of all points in the x-y plane exhibiting complete constructive interference. You should find the solution of the form y 2 x 1 2 b What are the values of the parameters a and b? You will be graded on your proof of those values. Don't forget that the number of lines of constructive interference depends upon the spacing between the sources. For any value of d, in addition to the line along y=0 the number of lines (in the upper half plane only) is equal to floor(d/^) (i.e., the largest integer less than or equal to d).