Final answer:
A wide-field fluorescence microscope can be converted to a reflected light microscope by adjusting the illumination system.
Step-by-step explanation:
A wide-field fluorescence microscope can be converted to a reflected light microscope by adjusting the illumination system. In a wide-field fluorescence microscope, fluorescent dyes or phosphorescent materials are used to convert nonvisible electromagnetic radiation into visible light. However, in a reflected light microscope, the specimen is illuminated with a strong light source, such as a halogen lamp or an LED, and the reflected light is observed.