If you are sitting Credit Standard Grade or Intermediate 2 you should be able to draw a ray diagram for a convex lens.
At Standard Grade you must be able to draw this diagram for a magnifying glass. A video for this will be posted shortly.
Intermediate 2 candidates may be asked to draw the diagram for an object placed
- closer than one focal length
- between one and two focal lengths
- more than two focal lengths
from the convex lens. I will post a video showing each of these three situations.
Let’s start with an introduction to drawing ray diagrams. This video looks at an object between one and two focal lengths from the lens. It will show you how to draw the diagram and explain the terms we use to describe the image.
Disclaimer: No rabbits were harmed in the making of this video.