Draw the ray diagram of image formed when the object is kept beyond $2 F$ of the convex lens. With the help of the diagram, mention the position and nature of the image formed. ($F$ : principal focus of the lens)

Draw a ray diagrams of convex lens when the position of the object is between ${\mathrm{F}}_1$ and $2{\mathrm{F}}_1$.

Draw a ray diagrams of convex lens when the position of the object is at $2 {\mathrm{F}}_1$.

Draw ray diagrams of convex lens when the position of the object is at infinity.

Define the terms converging and diverging lenses.