Written Laser Hair Removal Practice Exam

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Prepare for the Written Laser Hair Removal Exam. Study with flashcards and multiple-choice questions, each question includes hints and explanations. Get ready to succeed on your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which UV rays are considered the dominant tanning rays?

UVB rays
UVA rays
UVC rays
Infrared rays

The correct answer is: UVA rays

UVA rays are considered the dominant tanning rays because they are longer in wavelength, able to penetrate deeper into the skin, and cause the skin's pigment cells to produce more melanin, resulting in a tan appearance. UVB rays, on the other hand, are shorter in wavelength and cause sunburns rather than tanning. UVC rays are mostly absorbed by the Earth's ozone layer and do not reach the Earth's surface. Infrared rays do not have any tanning properties and instead provide heat. Therefore, UVA rays are considered the dominant tanning rays compared to the other options given.