| Focal Length ($f$): | |
| Object Distance ($d_o$): | |
| Object Height ($h_o$): | |
| Image Distance ($d_i$): | |
| Image Height ($h_i$): | |
| Magnification ($M$): | |
Ray 1 (Cyan): Parallel to principal axis → passes through focal point.
Ray 2 (Green): Passes through optical center → undeviated.
Ray 3 (Red): Passes through focal point → emerges parallel.