There is an object 20 cm from a converging lens with a 10 cm focal length.
Is the image upright or inverted?
Calculate the image distance.
Calculate the image height.
The Attempt at a Solution
I just had this on a college test in a testing center, I could find the first two with the thin lens equation and diagrams, not sure how I was supposed to get the last. I feel some info was missing, like object height. Any way my feeling was wrong?