I set you a task at the start of the week. You were asked to complete a ray diagram at home and use 3 words to describe the image that was formed.
Here are 2 short videos to remind you how to draw a ray diagram. The first video is an introduction to ray diagrams.
The second video looks at a ray diagram when the object is less than one focal length away from the lens.
Once the ray diagram is complete, we need to describe the image that has been formed. The description must tell us about the size, orientation and type of image that is formed.
If the image is larger then the original object, we say the image is magnified
If the image is smaller than the original object, we say the image is diminished.
If the image is the same way up as the object, we describe it is upright.
If the image is upside down compared to the object, we describe it as inverted.
If the object and image are on opposite sides of the lens, it is a real image.
If the object and image are on the same side of the lens, it is a virtual image.