\(\Delta x = d sin \theta  = n\lambda  ⇒ 2\lambda sin \theta = n\lambda\)

\(\sin \,\theta \,\, = \,\,\frac{n}{2}\,\,\,\,\,\, \Rightarrow \,\,\,{\text{ }}\sin \,\theta \,\, = \,\,\,0\,,\,\, \pm \,\,\frac{1}{2}\,\,,\,\, \pm \,\,\frac{2}{2}\,\,\,\,\, = \,\,5\,\) મહતમ