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MIC 121 Mib compilations3 Objective Question

Question

Which of the following best describes Phase Contrast microscopy?
Options
A It distinguishes between solid and liquid phases of the cell.
B It changes the color of light passing through it.
C It continuously changes the phase of the incident light from the condenser to improve contrast in the specimen.
D It transforms subtle changes in light waves passing through the cell to contrast parts of the cell with differences in light intensity.
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

Phase-contrast microscopy converts slight phase shifts in light, which occur when light passes through a transparent specimen, into observable intensity or brightness differences, enhancing contrast for unstained living cells.

Hint

This technique is particularly useful for visualizing live, unstained biological samples by exploiting differences in refractive index.

Question Info