What do you mean by dispersion of white light

Asked by admin @ in Science viewed by 305 People

(a) What is meant by dispersion of white light? Describe the formation of rainbow in the sky with the help of a diagram.

(b) What is hypermetropia? Draw ray diagrams to show the image formation of an
object by:
(i) Hypermetropic eye.
(ii) Correction made with a suitable lens for hypermetropic eye.

Answered by admin @


Explanation:

The splitting up of white light into seven colours on passing through a transparent medium like a glass prism is called disperision of light

The raindrops act like small prisms. When sunlight enters and leaves these randrops, the various coulured rays in white light are refracted by different amounts due to which an arc of seven coulurs called ranbow is formed.


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