Dissemination of IT for the Promotion of Materials ScienceDoITPoMS Teaching and Learning Packages

Optical Microscopy and Specimen Preparation

Answer to Q3

 
  1. When increasing the magnification on the microscope, which of the following occurs?
     a The depth of field increases.

    (Incorrect: the depth of field decreases as the magnification increases.)
     b The resolution limit decreases.

    (Incorrect: the resolution limit stays the same.)
    c The visible area decreases.

    Correct!
     d The contrast increases.

    (Incorrect: the contrast is not affected by the magnification.)
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