1. The problem statement, all variables and given/known data Now consider a diverging lens with focal length f=−15cm, producing an upright image that is 5/9 as tall as the object. What is the object distance? You will need to use the magnification equation to find a relationship between s and s′s′. Then substitute into the thin lens equation to solve for s. 2. Relevant equations 1) M = -s'/s 2) 1/s+1/s'=1/f 3. The attempt at a solution using equation 2 I solved for s' then subsituted that into equation 1 and solved for s and from that put it back into equation s and solved for s and ended up with the answer of -65/3. However this was the wrong answer and do not know what I did wrong.