The number of fringe order N is denoted as N = Δ 2 π {\displaystyle N={\frac {\Delta }{2\pi }}} which depends on relative retardation.
Jumlah pinggiran rangka N dilambangkan sebagai N = Δ 2 π {\displaystyle N={\frac {\Delta }{2\pi }}} yang tergantung pada keterbelakangan relatif.