the answer is a (prism).
Refraction is the name for what happens when light is split up into the different colors of the spectrum.
White light is made up of many lights which have different properties. We say that there are seven colours of light. We see a spectrum when white light is passed through a glass prism. When the various colours pass out of the air and into the prism, they are bent at different angles. This happens again when the rays leave the glass and pass back into the air. That is when we see the almost magical spectrum.
In Impure spectrum,light rays do not focuss at different points uniformly but colours collapsed with each other.
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.
Because different colours have different have speeds in a prism , as refractive index depends on speed of the object therefore different colours have different refractive indexes
Refraction is the name for what happens when light is split up into the different colors of the spectrum.
the answer is a (prism).
Its a spectrum
White light is made up of many lights which have different properties. We say that there are seven colours of light. We see a spectrum when white light is passed through a glass prism. When the various colours pass out of the air and into the prism, they are bent at different angles. This happens again when the rays leave the glass and pass back into the air. That is when we see the almost magical spectrum.
It forms white light
Rain droplets can refract light. Different colours refract in different amounts so a spectrum is produced.
In Impure spectrum,light rays do not focuss at different points uniformly but colours collapsed with each other.
That's " dispersion ".
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.
Different wavelengths of light have different colours, the spectrum of visible light goes from 700 nanometres to 400 nanometres and goes from red to violet. The colours are red, orange, yellow, green, blue, indigo and violet.
If it is a glass prism, the light gets split into is spectrum of colours. Normal light looks a bit like a rainbow afterwards.
"White" light.