The light rays that are used for eliminating bacteria in test tubes used in pathology labs are-

Correct option is D

The correct answer is (d) Ultra Violet radiations.
· Ultraviolet (UV) radiations are commonly used in pathology labs and other medical settings to eliminate bacteria, viruses, and other pathogens. UV-C light, in particular, has germicidal properties that can effectively disinfect surfaces, air, and water by damaging the DNA or RNA of microorganisms, thereby rendering them inactive.
Information Booster:
· X-Rays: Primarily used for imaging inside the body (e.g., X-ray scans), not for sterilization.
· Infrared rays: Commonly used for heating purposes, but they are not effective in killing bacteria.
· Microwave radiations: Used for heating food and certain industrial processes but not typically for sterilizing medical equipment.