An interference is observed due to two coherent sources ‘A’ and ‘B’ having phase constant zero separated by a distance 4λ along the y-axis where λ is the wavelength of the source. A detector D is moved on the positive x-axis. The number of points on the x-axis excluding the points x=0 and x=∞ at which maxima will be observed is
3
At x=0;Δx=4λ
And at x=∞,Δx=0 except then, there are 3 maxima
Where Δx=λ,2λ and 3λ exist.