Lecture 27, ACT 2
Suppose we interchange the converging and diverging lenses in the preceding case.
- What is the relation of the new magnification m’ to the original magnification m?
- Since the formula for the magnification is equal to the product of the magnifications of each lens (m = m1m2), you might think that interchanging the lenses does not change the overall magnification.
- This argument misses the point that the magnification of a lens is not a property of the lens, but depends also on the object distance!
- Consider the ray shown which illustrates that the magnification must be < 1!