Chapter 25: Q56PE (page 931)
Find the magnification of the heater element in Example \(25.9\). Note that its large magnitude helps spread out the reflected energy.
Short Answer
Magnification of heater element is \( - 11\).
Chapter 25: Q56PE (page 931)
Find the magnification of the heater element in Example \(25.9\). Note that its large magnitude helps spread out the reflected energy.
Magnification of heater element is \( - 11\).
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The Ray Aspect of Light
Suppose a man stands in front of a mirror as shown in Figure 25.50. His eyes are 1.65 mabove the floor, and the top of his head is 0.13 mhigher. Find the height above the floor of the top and bottom of the smallest mirror in which he can see both the top of his head and his feet. How is this distance related to the man's height?
Image Caption
Figure 25.50A full-length mirror is one in which you can see all of yourself. It need not be as big as you, and its size is independent of your distance from it.
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