Makeup Exam #2 Solutions. Multiple choice questions 2) The figure below shows several of the light rays coming off an object and of the candle. | University of Maryland screen Department of Physics Spring 2002 Laura Lising Physics 122 May 8, 2003 Makeup Exam #2 Solutions Multiple choice questions. Just the answer counts for these. (8 points each) 1) A rabbit puppet is near a mirror. From which point(s) can you see the entire image of the rabbit? (I) a) I only b) I and II (II) c) II and III d) III only (III) e) III and IV f) None. Draw light leaving the tail and see if it can reflect to the point of (IV) interest; ditto from the ears. Angle out = angle in, and you can see that points I and II can see both ends of the bunny. 2) The figure below shows several of the light rays coming off an object and passing through a lens. Where could you put your eye to see an image of the candle? a) I, II, III, or IV (V) b) I, II, or III c) I or II (IV) d) III or IV (I) (II) (III) e) From any point. f) From no point. To see an image of the top of the candle, you need to be able to see light coming from it. That rules out V. If you put your eye at I, light can hit it, but you wouldn’t see an image, meaning your two eyes wouldn't agree that the light is coming from the same point. At point II, you also couldn't see an image. In fact, all the light from the top of the candle is converging at that point. If you put your eye right there, you could see light, but if you moved your eye ever so slightly (or looked with the other eye) you wouldn't see any light at all, let alone light that all comes from the same point. At III and IV, you can see light coming from that point in space – trace back the lines of sight, and that’s where the light came from. screen Physics 122 Makeup Exam 2 – p. 2 Name Section__ 3) You a small light bulb and a board with an aperture shaped like an "A" as shown. The screen and the aperture cm board are 10 cm apart and the A aperture is 1 cm wide on the bottom 1 cm and cm tall. How far from the aperture do you need to hold the bulb to get a bright spot that is
