Period: Lens Equation -p.2 A. Magnification of the lens. Which side of a lens is real? Why? 2. q B. Height of the image. 3. h C. Distance from lens or mirror to the image. Which side of a mirror is real? 4. h' D. Distance from lens or mirror to object. Why? 5. M E. Height of the object. When is f negative? When is h' negative? When is q negative? When is h negative? When is M negative? When is p negative