In this chapter compound microscope has been discussed.
LEC 57: https://www.youtube.com/watch?v=GZ4epl0FiuI
LEC 63: https://youtu.be/D3eerTw-DEo
9 kpk: https://www.youtube.com/playlist?list=PLIt_q9LcM-9UEdVCvvC_CEiNsBybNp9al
9 ptb : https://www.youtube.com/playlist?list=PLIt_q9LcM-9Wtu0gyshWr2DuIULUVPxBZ
10.: https://www.youtube.com/playlist?list=PLIt_q9LcM-9VTotDIeMenTnWLnRCIIlLX
