1. The problem statement, all variables and given/known data An arrow h0 = 2.20 cm long is located 74.0 cm from a lens, which has a focal length = 30.6 cm. If the arrow is perpendicular to the principal axis of the lens, as shown in the figure below, what is its lateral magnification, defined as hi/h0? I am given: ho=2.20 cm. do 74.0 cm. focal length is 30.6 cm 2. Relevant equations 1/f=1/di=1/do 3. The attempt at a solution I used 1/f=1/di=1/do= 1/30.6=1/di+1/74.0 I get 52.175 with this equation which is my Di. Then, I hi/2.20 cm=74.0/52.175 =3.12 from there I have to do hi/ho 3.12/2.20=1.418 I am completely wrong! Help!