Question

multiple choice question
which type of microscope projects a brightly illuminated image on a dark background?

phase - contrast
dark - field
differential interference contrast
bright - field
need help? review these concept resources.
read about the concept

Explanation:

Dark-field microscopes use a specialized condenser that blocks direct light, only allowing scattered light from the specimen to enter the objective lens. This creates a brightly lit specimen against a completely dark background. Phase-contrast and differential interference contrast microscopes enhance contrast of transparent specimens on a light background, while bright-field microscopes show dark specimens on a bright background.

Answer:

B. Dark-field