What Does the Negative Sign Indicate in the Mo Formula on HyperPhysics?

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SUMMARY

The negative sign in the Mo formula on HyperPhysics indicates a reversal in the direction of the image relative to the object, adhering to sign conventions in optics. Specifically, it suggests that the object and image are oriented oppositely along the axis. The discussion clarifies that a negative magnification does not imply a diminished image but rather denotes the nature of the image's orientation. Understanding this concept is crucial for interpreting optical formulas accurately.

PREREQUISITES
  • Basic understanding of optics and sign conventions
  • Familiarity with magnification concepts in physics
  • Knowledge of the Mo formula and its components
  • Experience with analyzing optical systems
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  • Research the principles of sign conventions in optics
  • Study the derivation and applications of the Mo formula
  • Explore the concept of virtual vs. real images in optics
  • Learn about magnification and its implications in various optical systems
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Students of physics, particularly those studying optics, educators teaching optical principles, and anyone seeking to deepen their understanding of image formation and magnification in optical systems.

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Homework Statement


At this site http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/micros.html , what does the negative sign indicate in the Mo formula?


Homework Equations


On website


The Attempt at a Solution


My guess is that either L or Fo are negative, but a negative magnification makes no sense, so basically it is a substitute for a modulus. Note: negative magnification could not possibly mean the image is diminished, because a diminished image simply has a magnification of less than 1 but greater than 0.
 
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It may be because of the sign convention. Here the object and image are in the opposite direction of the axis.
 
I don't believe either measurement qualifies as virtual
 

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