Table of Contents
Which is the best definition of white light?
Definition of White Light. White light is defined as the complete mixture of all of the wavelengths of the visible spectrum. This means that if I have beams of light of all of the colors of the rainbow and focus all of the colors onto a single spot, the combination of all of the colors will result in a beam of white light.
How is white a color and what does it reflect?
White is a color. White reflects all the colors of the visible light spectrum to the eyes. The colors we see are simply a degree of how much of this color present in light is reflected. To be completely accurate, a color reflects the wavelengths in the NM range that our retinal cones respond to.
Is it true that White is not a color?
Yes, white is not only “a color”–it is the presence and reflectance of ALL the colors. Black is the absence of “color”, because in order to be black it is reflecting no color, at all. The primary colors of light, of which white is composed are Red, Green, and Blue light.
How is white light split into its different colors?
Another interesting thing about white light is that it can be split up into its individual colors. A prism is a device that can separate white light into its different colors. When white light goes through a prism, the light bends because the speed of light decreases as it goes from air to the prism.
How can light consist of all the colors?
Light is made up of wavelengths of light, and each wavelength is a particular colour. The colour we see is a result of which wavelengths are reflected back to our eyes. The visible spectrum showing the wavelengths of each of the component colours. The spectrum ranges from dark red at 700 nm to violet at 400 nm.
Why does the speed of white light vary?
The speed of light depends on the wavelength of the light. As a result, when white light bends through a prism, each wavelength travels at a different speed inside the prism, resulting in the different colors emerging from the prism.