Question Detail
Question
Which of the following best describes Phase Contrast microscopy?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Phase-contrast microscopy is a powerful technique for viewing unstained, live specimens. It works by converting slight variations in the refractive index (and thus phase shifts) of light as it passes through different parts of the specimen into measurable differences in light intensity (brightness or darkness), thereby enhancing contrast.
Hint
The name 'phase contrast' directly indicates the optical property it manipulates to create an image.