A child looks at a reflective Christmas tree ball ornament that has a diameter of 9.0 cm and sees an image of her face that is half the real size. How far is the child’s face from the ball?
Answer to relevant QuestionsAn object 5.0 cm tall is placed 40 cm from a plane mirror. Find (a) The distance from the object to the image, (b) The height of the image, and (c) The image’s magnification. A convex mirror is on the exterior of the passenger side of many trucks (see Conceptional Question 8a). If the focal length of such a mirror is – 40.0 cm, what will be the location and height of the image of a car that is ...When an object is moved closer to a convex mirror, its image size (1) increases, (2) remains the same, (3) decreases. Prove your answer mathematically. A convex lens produces a real, inverted image of an object that is magnified 2.5 times when the object is 20 cm from the lens. What are the image distance and the focal length of the lens? Using Fig. 23.28, derive (a) The thin lens equation and (b) The magnification equation for a thin lens.
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