일반물리학 2 — Images: Problem 66

66 An object is placed against the center of a spherical mirror and then moved 60 cm from it along the central axis as the image distance $i$ is measured. Figure 34-36 gives $i$ versus object distance $p$ out to $p_s = 40 \text{ cm}$. What is $i$ for $p = 60 \text{ cm}$?