A microscope that converts changes in the speed of light as it passes through an object into differences in brightness is a ________ microscope.
A)bright field
B)dark field
C)phase-contrast
D)Nomarski

Question

Quizplus · Accepted Answer

This is a description of a phase-contrast microscope, which uses the principles of phase shift and interference in light waves passing through a specimen to produce contrast in the image. A bright field microscope relies on differences in absorption and transmission of light by the specimen, a dark field microscope illuminates the sample from the side to produce contrast, and a Nomarski microscope uses polarized light to produce contrast.

A Microscope That Converts Changes in the Speed of Light