Question

What is dispersion?

13.ii) Which factor affects the scattering of light?

13.iii) In the formation of rainbow which colour deviates most?

13.iv) Which colour of light has the longer wavelength?

13.v) In the formation of rainbow, which colour is deviates least?​

Answer 1

Explanation:

1)THE process by which people or things are spread over a wide area.

2)Reason: Scattering of light is directly proportional to the wavelength.

3)Light rays, reach the drop near its top level. ...

The violet is the most deviated and red is the least deviated colour.

Reaching the opposite side of the drop, each colour is refracted back into the drop due to the complete internal reflection that hits the drop surface.

Every colour is refracted to the air again.

4)RED

5)Red light suffers the least amount of deviation and violet the most. When a white light is made to pass through a prism, formation of a spectrum of seven colors occurs showing white light is a combination of seven separate colors.

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