West Virginia Barber Written Practice Exam 2025 – Complete Study Resource

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What type of wavelengths can kill microorganisms?

Infrared light

Infrared light is not capable of killing microorganisms because it does not have the energy required to destroy or inhibit their growth. On the other hand, ultraviolet light, specifically UV-C light, is known for its ability to kill microorganisms by disrupting their DNA and cellular structure. UV-C light is commonly used for disinfection purposes in various settings, including water treatment facilities, hospitals, and laboratories. Laser and visible light do not possess the same antimicrobial properties as ultraviolet light.

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Laser

Ultraviolet light

Visible light

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