A lens can be converging (convex) or diverging (concave). The centre of the lens is called the optical centre C. In a ray diagram, a converging lens is drawn as a vertical line with outward facing ...

Draw a ray from the object to the lens that is parallel to the principal axis. Once through the lens, the ray should pass through the principal focus. Draw a ray which passes from the object ...

Difference between Concave vs Convex ... lenses make far objects appear smaller than their actual size. Concave lens formula is used to determine the position and nature of the image formed after ...

We compare and contrast concave and convex lenses by drawing ray diagrams. In this Closer Look segment on Lenses, we compare and contrast concave and convex lenses by drawing ray diagrams and ...

(b) only concave. (c) only convex. (d) either plane or convex ... How far is the object placed from the lens? Draw the ray diagram. The point of intersection of these refracted rays gives the ...

(e) The image formation by a concave mirror when the object is at infinity. Question. 31 Draw ray diagrams showing the image formation by a convex lens when an object is placed (a) Between optical ...