Minerals or purified salts (pigments)
a prism
That is not true. If you are talking about all the colours of light in the spectrum coming from white light that is true. When white light passes through a glass prism, it causes the light to split into different colours because of the different angles at which they refract.
Different metal oxides are added to glass to create various colors. For example, iron oxide is added for green glass, cobalt oxide for blue glass, selenium for red glass, and manganese for purple glass. The specific oxide added will determine the color of the glass.
The sunlight hits the glass of water and then the light disperses out as a spectrum of colour (rainbow). This is because sunlight is white light and white light contains the 7 colours of the rainbow. When it hits the glass the colours refract and disperse out as the spectrum of colours, which we see as a rainbow.
When composite white light with seven colours as constituents enter into triangular prism, then different colours get refracted at different angles because of the different refractive index value of glass for different colours. Refractive index is defined as the ratio of the speed of light in free space to that in the glass medium. As the speed of the different colour differ, the refractive index varies. Hence they have different angle of refraction. So all the colours have been split up. As we use a triangular prism, as the refracted colours fall on the other face of the prism, once again separation becomes possible. Hence the phenomenon of dispersion. But this will not be possible when we use a rectangular glass slab. So triangular prism is essential to have dispersion.
White light is composed of many colours. When these colours combine, they look white. One way of showing that white light is composed of different colours is to make white light pass through a glass prism. This splits up the white light into its constituent colours. I f you hold a screen in its path, you will see a band of colours. This band of colours is called the spectrum. Since it is visible to human eyes, it is called the visible spectrum.
to make the world more colourful.
Because the glass has many colours
White light is composed of many colours. When these colours combine, they look white. One way of showing that white light is composed of different colours is to make white light pass through a glass prism. This splits up the white light into its constituent colours. I f you hold a screen in its path, you will see a band of colours. This band of colours is called the spectrum. Since it is visible to human eyes, it is called the visible spectrum.
you all kno whos speaking here if not look on questions like who or what infulenced kate maestri, the answer to the question is glass different colours and shades of colours
It splits into the colours that make it up, so white light makes a rainbow, and different colours produce different results.
Shining a white light through a glass prism will split the light into rainbow colours.