Convex lens#!#Ray diagrams of convex lens

What is a convex lens ?

State the rules to draw a ray diagram of a convex lens with proper figures.

State two differences between a convex lens and a concave lens. Give one use of convex lens and one of concave lens.

When does a convex lens behave as a concave lens ?

When does a convex lens behave as a concave lens ?

Calculate the position of the image of an object when placed at (a) focus of a convex lens. (b) focus of a convex lens.

State used of a convex lens.