3.2.3-3.2.4 · Thin lenses and dispersion of lightLesson 2 of 12Free preview
Focal length, principal axis and principal focus
Focus a distant window on a card: the distance from lens to card is the focal length.
3.2.3-3.2.4 · Thin lenses and dispersion of lightLesson 2 of 12Free preview
Focus a distant window on a card: the distance from lens to card is the focal length.