Use the information in the box to answer the following question. 4. A real image that is smaller than the object will be produced when an object is placed In the diagram is a thin lens, the principle axis, points for "P' and "2f' on each in front of a concave mirror side of the lens and a ray coming in from the left side of the diagram. On the a. at the focal point of the mirror. right side of the lens are four predicted paths (dashed lines) the ray might take b. between the focal point and the mirror. after passing through the lens. . beyond the centre of curvature. d. between the focal point and centre of curvature. 5. A ray of light in water (n = 1.33) travels towards a second unknown medium. The incoming ray angle of incidence in water is 42.0 and the speed of the light in the second medium is 2.00 x 108 m/s. The angle of refraction in the second medium is - >R a. 31.20 36.40 46.70 48.60 6. For the type of the lens in the diagram, the incoming ray will follow a. Path P b. Path Q c. Path R d. Path S Numerical Response #4 The speed of light in an unknown material is 2.05 x 108 m/s. The critical angle for an 7. An object is placed 65 cm from a converging lens has a focal length of 40 cm. Which interface of air and the unknown material is degrees. of the following correctly describes the type of image and its magnification? a. Real image --- smaller than object Record your three digit answer in the numerical response section on the answer sheet. b. Real image -- larger than object Virtual image --- smaller than object For example record 38.20 d. Virtual image -- larger than object 3 8 . 2 8. A diverging lens with a focal length of 18 cm creates an image that is one quarter the size of the object that is being viewed. How far from the lens is the object located? a. 14 cm b. 4.5 cm c. 90 cm d. 54 cm