\section{Diffraction de la lumière par un réseau}

\includegraphics[width=18.508cm,height=26.033cm]{Pictures/100000010000025F000003435F03932190A92825.png}

\includegraphics[width=18.503cm,height=25.456cm]{Pictures/100000010000025F00000343A168F15A1FB3D46F.png}

\includegraphics[width=18.503cm,height=25.456cm]{Pictures/100000010000025F00000343388E3E491CC3B041.png}

\includegraphics[width=18.503cm,height=25.456cm]{Pictures/100000010000025F0000034333FCC8788E7659FD.png}

\includegraphics[width=18.503cm,height=25.456cm]{Pictures/100000010000025F00000343D486BB66DF721C0E.png}