Question

Write about dispersion of light....

Answer 1

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The process of splitting of white light into seven colours is called dispersion of light.

For example :Rainbow during a cloudy day

Cause of dispersion of light: When light passes through a prism, the different frequencies of light travel at different velocities. Because of refraction, the different velocities make the angles of refraction different, causing the light to travel in slightly different directions.

In an optical medium, such as fiber, there are three types of dispersion, chromatic, modal, and material.

Answer 2

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WRITE ABOUT DISPERSION OF LIGHT

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★ DISPERSION OF LIGHT ★

• the dispersion of light was discovered by Newton in 1665 with the help of prism when a light option passes through the prism it split into seven colours the seven colours can be received on white screen
• the bond of seven colours formed on white screen when a beam of light passes through the prism is called spectrum of light
• the colour of the collection of 7 is known as vibgyor it stands for violet , indigo , blue, green , orange and red
• the phenomenon of white light splitting into seven colours on passing through prism is called dispersion of light

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