A lamp which is 12.0 cm tall is 264.0 cm in front of a converging lens which has a focal length of 80.0 cm.
(a) What is the image distance for this lamp and lens combination (include sign if negative)?
(b) If a screen is placed at the image location found in (a), what will be observed on the screen?
(c) If the screen is moved slightly farther from the lens than the distance found in (a), what will be observed on the screen?