West Virginia Barber Written Practice Exam

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Prepare for the West Virginia Barber Written Exam with flashcards and multiple choice questions. Each question includes helpful hints and explanations. Ensure your success on the exam!

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What type of wavelengths can kill microorganisms?

Infrared light
Laser
Ultraviolet light
Visible light

The correct answer is: 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.