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Why do we see a rainbow in the sky only after rainfall?

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Why do we see a rainbow in the sky only after rainfall?

“We see a rainbow in the sky only after the rainfall.” Why?

Short Answer
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Solution

Raindrops present in the atmosphere after rainfall serve as a prism and refract, disperse, and internally reflect the incident sunlight, followed by final refraction. The whole sequence of dispersion and internal reflection leads to the formation of the rainbow after rainfall in the sky.

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Chapter 11: The Human Eye and the Colourful World - Short Answer Questions [Page 89]

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NCERT Exemplar Science [English] Class 10
Chapter 11 The Human Eye and the Colourful World
Short Answer Questions | Q 22. | Page 89

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