It is slightly different for each person, although light with a wavelength of 400 to 700 nm is the usual definition.

Facts about Electromagnetic Spectrum 8: the visible light. Visible Light radio | micro | IR | visible | UV | X | gamma: There are many millions of colours which we can distinguish with our eyes.

You can't make radiowaves or UV rays out of visible light.

The entire range of light, from radio waves to gamma rays, is known as the electromagnetic spectrum. The spectrum includes radio waves, microwaves, infrared light, visible light, ultraviolet, x-rays and gamma rays, but only visible light, which we interpret as colors, can be seen.

Objects that do not give off their own visible light (and are therefore invisible to our eyes in the dark) glow in other wavelengths, like infrared or ultraviolet. Some people are able to see visible light with wavelengths as … It ranges in wavelength from approximately 400 nanometers (4 x 10 -7 m, which is violet) to 700 nm (7 x 10-7 m, which is red). The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible to the human eye. Essentially, that equates to the colors the human eye can see. Check Also: 10 Facts about electric microscope. The longest wavelength light we can see is red, at about 700 nm (700 × 10-9 m). The visible portion of the spectrum is that which can be perceived by the human eye. When we talk about electromagnetic spectrum, we should never separate it with the visible light.

People have been interested to study the visible light since the ancient era. There are other types of electromagnetic radiation that human eyes cannot see. Each colour of light we see has a different wavelength (and frequency). Without it, food chains would fall apart and surface temperatures would plummet; although visible light is integral to our survival and is beneficial in many ways, it is capable of causing negative effects as well.

But visible light is just one form of light. Any longer than this, and we cannot see it. Therefore, it is not a new thing to learn. Well, seeing as it seperates visible light, it follows that it only seperates that visible light into the visible spectrum. It is also known as the optical spectrum of light or the spectrum of white light. Light is but a small part of a much, much bigger electromagnetic spectrum of radiation that we can’t see. Life on earth is dependent on visible light radiation.