The diagram shows total internal reflection. Which of the following statements is NOT true? B IN medium I 7777 10 medium II danca A) A) angle AON is the angle of incidence B) B) angle AON = angle BON C C) angle AON must be the critical angle D D) the speed of light in medium II is greater than that in medium I E) E) if angle AON were increased, there would still be total internal reflection

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1. You are standing 2 m in front of your plane bathroom mirror which hangs on the wall. How far away is your image from you? A. 2 m B. 4 m C. 1 m D. Infinitely far away   2. An object is placed to the left of a lens. If the image of the object is formed on the right side of the lens, which of the following statements must be true?    A. The image is upright and the lens must be concave B. The image is inverted and real, and the lens must be convex C. The image is upright and virtual D. The image is upright, and the lens must be convex E. The lens could be concave or convex

c) Down d) South e) Up 13. An object located 70.0 cm from a concave mirror forms a real image 38.0 cm from the mirror. The mirror is then turned around so that its convex side faces the object. The mirror is moved so that the image is now 18.0 cm behind the mirror. How far was the mirror moved? a) 80.4 cm toward the object. b) 66.9 cm away from the object c) 3.13 cm away from the object d) 66.9 cm toward the object e) 3.13 cm toward the object.