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ABO # STWQO034-2
APPROVED for 1 Hour(s) of CE
New York - (#09-01) DISP
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Florida
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Ontario Opticians (#2674 EG)
APPROVED for 1 Hour(s) of CE |
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A concave mirror CAN form magnified images, that is why we consider it a magnifying mirror. But is does not ALWAYS form magnified images. Likewise, a concave or converging mirror CAN form real (and therefore inverted) images. However, note that when we are using the mirror as a magnifier, it is actually forming a virtual image. Any time the image looks right side up, it is virtual. It is also reverted. Although the image may be real or virtual for a concave mirror, the focal point for a concave mirror is real and the focal point for a convex mirror is virtual. Note that the answers to #4 and #5 assume that the mirror is used alone, and is not part of a series of reflecting or refracting elements. We will discuss instruments that have more than one element in the final course on ray tracing, which discusses telescopes, microscopes, and lensmeters. REFERENCES: Loshin, Geometrical Optics Workbook; Butterworth-Heinemann, 1991. Meyer-Arendt, Introduction to Classical and Modern Optics; Prentice-Hall, 1993. Stoner, Perkins, Ferguson, Optical Formulas Tutorial; Elsevier, 2005. |
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