Question

Make labelled  ray diagrams to illustrate the formation of: 

 a virtual image by a converging mirror.
Mark clearly the pole, focus, centre of curvature and position of object in each case.

Answer 1

A virtual image is formed by a converging lens when an object is placed between the pole and the focus: 

  

Here, P: pole, F: focus, C: centre of curvature, AB: object and A'B': image