What do you mean by dispersion of light how is a rainbow formed
Answers
AnswEr:-
• The process of splitting of white light into seven colours is called dispersion of light.
Example: Formation of Rainbow.
• When a ray of sunlight 'AB' enters the raindrop at point 'B' and undergoes refraction and dispersion to form a spectrum. This spectrum undergoes total internal reflection at point 'C' within the raindrop at point 'D'. Thus, forming a rainbow.
This spectrum produced by the raindrops in the atmosphere is seen from the Earth. The red colour of spectrum appears at top of the rainbow, whereas violet appears at its bottom.
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Answer:
‘Dispersion of Light’ can be defined as the splitting of white light when it passes through a glass prism into its constituent spectrum of colors (i.e. violet, indigo , blue, green, yellow, orange and red). Dispersion figuratively means ‘distribution’ and hence that’s exactly what is happening in the picture above.