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## Homework Statement

There is an object 20 cm from a converging lens with a 10 cm focal length.

## Homework Equations

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?