For questions 7 to 9, keep diverging or concave lens with a focal length of -180 cm. 7. Move the object distance to 200 cm, and set object height to 50 cm. Which of the following is true about the image? a. The image is formed between F and lens, is real, inverted and smaller in size than the object. b. The image is formed between F and lens, is virtual, inverted and smaller in size than the object. c. The image is formed between F and lens, is real, upright and smaller in size than the object. d. The image is formed between F and lens, is virtual, upright and smaller in size than the object. 8. Set object height to 50 cm. Where should you place the object to obtain a real image that is inverted but larger than the object? a. do between 2F and infinity. b. do between 2F and F. c. do between F and the concave lens. d. It is not possible to obtain a real image with a concave or diverging lens. For all values of do, with a diverging lens one obtains an image that is virtual, upright and smaller in size than the object. 9. Set object height to -50 cm, and object distance 200 cm from lens. The image distance and image heights are a. di is between -90 to -100 cm and hi is between -20 to -26 cm. b. di is between -90 to -100 cm and hi is between 20 to 26 cm. c. di is between 90 to 100 cm and hi is between -20 to -26 cm. d. di is between 90 to 100 cm and hi is between 20 to 26 cm.Mirrors and Lenses Figure 2 Focus, F O E Concave mirror Focal length (cm) -180.0 Convex mirror Object distance, x (cm) 224.0 OOOO Plane mirror Object height (cm): 50.0 Converging lens Image distance, x' (cm) -99.8 Diverging lens Image height (cm): 22.3 O Note that in figure 2, the focal length is -180 cm, as this is a diverging or concave lens. To change the focal length, you move the red dot. A positive sign for di indicates a real image, a negative sign for di indicates a virtual image. A negative sign for ho indicates an inverted object. A negative sign for hi indicates an inverted image. You can move the Object horizontally to change its distance from the lens, or vertically, to change its height. The values of the di, do, hi and ho can be read on the right hand side of the simulation. Note: do is x in the window and di is X