Electromagnetic Spectrum and Light Practice Test

Humans can see visible light, which is the portion of the electromagnetic spectrum that our eyes are sensitive to. This range of wavelengths extends approximately from 380 to 750 nanometers, encompassing the colors from violet to red.

Visible light is crucial for our everyday experiences, as it allows us to perceive the world around us in color and detail. The other parts of the electromagnetic spectrum, such as radio waves, microwaves, and ultraviolet light, fall outside this range. Radio waves have much longer wavelengths, making them undetectable by the human eye. Similarly, microwaves are also longer than visible light and are primarily used for communication and cooking rather than for human sight. Ultraviolet light has shorter wavelengths than visible light, which is why it can cause sunburn and is not visible to the human eye.