1. The problem statement, all variables and given/known data f = 10 cm i = 25 cm Find angular magnification of lens 2. Relevant equations Ang mag = theta_image/theta_object 3. The attempt at a solution I found p to be 16.67 using 1/p+1/25=1/10 and I am not sure about the next step. theta_0 = atan (16.67/25) theta_f = atan (25/25) and found thetas, and divided them to get 0.785/0.588=1.335 as my final answer.