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Optics

Angular Magnification by a Simple Microscope continued

The object is now moved so that the image is at infinity. Obviously, b is now a smaller angle than in the previous case.

Now, b = h/f so the angular magnification is now given by

Therefore

This represents a lower magnification than when the image is at the near point because D is a negative quantity (it is a virtual image distance).

 

 

 

 

 

 

 

 

 

 

 

 

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