Written Laser Hair Removal Practice Exam 2025 - Free Laser Hair Removal Practice Questions and Study Guide

Question: 1 / 400

The light we see is part of which spectrum?

Ultraviolet spectrum

Infrared spectrum

Electromagnetic spectrum of radiation

The correct answer is indeed that the light we see is part of the electromagnetic spectrum of radiation. This spectrum encompasses a wide range of electromagnetic waves, including visible light, which is just a small portion of it. Visible light is the range of wavelengths that the human eye can detect, typically from about 400 nanometers (violet) to about 700 nanometers (red).

The ultraviolet spectrum mentioned includes wavelengths shorter than visible light, which can have effects on the skin and can not be seen by the human eye. The infrared spectrum consists of wavelengths longer than visible light and is primarily associated with heat, rather than visible vision. The radio wave spectrum encompasses even longer wavelengths and is used for communication technologies, which also do not fall within the visible range.

Understanding this context of the electromagnetic spectrum helps clarify why visible light belongs specifically to this broader category of radiation.

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Radio wave spectrum

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