3) It is sometimes said that left/right is reversed when looking at one's self in a plane mirror. But think about this: Imagine that you face a mirror and that your left hand has a blue glove on it, while your right hand has no glove. As viewed from your perspective, your image's hand at the left has a blue glove on it (just like yours), while your image's hand at Mirror the right has no glove (just like yours). So, in this sense left/right is not reversed in the image. Axes Image of axes Maybe you don't completely believe (yet @) that left/right is not reversed. Try the following, and you will Ay be able to see exactly what is reversed. The figure shows a set of x, y, and z axes in front of a mirror. X a) On the figure, draw and label the images of the x, y, 1 2 and z axes behind the mirror. b) Based on this drawing, which axis (or axes) is reversed? c) So, if you were to stand in front of and face the mirror, which of the following is actually reversed: forward/backward, up/down, or left/right? d) Here is one more thought experiment to try: Again, imagine that you stand in front of and face the mirror. Assume that your +x-axis points east (so your -x-axis points west), your +y-axis points up (so your -y-axis points down), and your +2-axis points south (so your -2-axis points north). i) In which direction does your image point its index finger if you point your index finger... east? west? up? down? north? south? ii) And so, if you are facing the mirror, which of the following is actually reversed: forward/backward (east/west), up/down, or left/right (north/south)