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Homework Help: Complex lens

  1. Jan 6, 2012 #1
    When an object is placed at the principle focus of a complex lens, then the image is
    A) larger and inverted
    B) smaller and inverted
    C) the same size and inverted
    D) not formed at all
    Incorrect. Your answer=C, Correct answer=D

    MY QUESTION: WHAT ON EARTH IS A COMPLEX LENS? CONVEX OR CONCAVE?
    thanks
     
  2. jcsd
  3. Jan 6, 2012 #2

    Doc Al

    User Avatar

    Staff: Mentor

    I suspect it means a compound lens: several lenses combined together.
    Does it matter?
     
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