Question

what type of light source is used by a confocal microscope?
fluorescent
ultraviolet
incandescent
laser

Explanation:

Confocal microscopes use lasers as their light source because lasers provide coherent, intense, and precisely focused light that enables the system to scan samples point-by-point and create high-resolution, 3D images by eliminating out-of-focus light. The other options are not the primary light source for this type of microscope.

Answer:

D. Laser