Challenges
Tweak the controls until each challenge lights up. Solved 0/5.
30 cm
15 cm
8 cm
Through optical centre
Parallel to axis
Through focus
Project onto virtual screen
Produce a real image
Configure the lens so the refracted rays actually meet on the far side.
Produce a virtual image
Get the lens to form an image that only appears to exist — try moving the object closer.
Produce a same-sized image
Find the special position where the image has the same height as the object.
Produce a large magnified image
Hunt for a configuration where |m| ≥ 3.
Identify the lens
Make the image virtual AND diminished — only one lens type can do this for every object position.