Written Laser Hair Removal Practice Exam

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In laser treatment order for penetration depth, which comes second?

Ruby
Alex
Diode
Nd:YAG

The correct answer is: Alex

It is important to note that Ruby, Diode and NdYAG are all types of lasers used in laser treatment. So while those answers may seem like correct options, they do not fit the context of the question. The question is specifically asking about the order for penetration depth, meaning the depth at which the laser can reach in the skin. Ruby lasers have a shorter wavelength and are better for superficial skin treatments, so they would not come in second for penetration depth. Nd:YAG lasers have the longest wavelength and can penetrate the deepest, so they would not be the second option either. The correct answer, Alex, is an abbreviation for Alexandrite, which has a medium wavelength and is commonly used for deeper skin treatments, making it the second option in terms of penetration depth.