x, The common centre of curvature (nodal point of the several media). Rays which pass through this point are not deflected.
y, The principal focus of the system. All rays which are parallel to the optic axis converge to this point. The image of the point A is formed at a, the spot at which a ray parallel with the optic axis meets an unbent ray—the image of B at b.
- Auteur
- The Body at Work
by Alexander Hill
Published 1908
Available from gutenberg.org - Ajoutée le
- Mardi 1 Septembre 2020
- Dimensions
- 900*312
- Mots-clés
- human, Nervous System
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