Written Laser Hair Removal Practice Exam

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Laser hair removal devices operate primarily within what spectrum of light?

  1. Ultraviolet and violet

  2. Blue and green

  3. Red and near infrared

  4. Visible and ultraviolet

The correct answer is: Red and near infrared

Laser hair removal devices use concentrated beams of light to target and damage hair follicles, ultimately preventing future hair growth. Out of the given options, red and near infrared is the spectrum of light most commonly used in these devices. Ultraviolet and violet light can cause harm to the skin, making it unsafe for hair removal. Blue and green light lack the necessary intensity to effectively damage hair follicles. And while visible and ultraviolet light may be used in some devices, they are not commonly used for laser hair removal. Therefore, the correct answer is C Red and near infrared.

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