A 3.0-cm -tall candle flame is 2.0 m from a wall. You happen to have a lens with a focal length of 18cm .
Part A How many places can you put the lens to form a well-focused image of the candle flame on the wall?(=2)
Part B What are the distance between the candle and the lens for each location?(20, 180 cm)
Part C For each location, what is the height of the image?