Question

explain the formation of rainbow in the Sky with the help of a diagram

Answer 1

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Formation of a rainbow:

Rainbow is caused by dispersion of sunlight by tiny water droplet's hanging in the atmosphere after a rain shower. The water droplets acts like a small prism. As shown in the figure, the water droplets refract and disperse the incident sunlight.These ray are then reflected internally and finally refracted again and come out of the rain drop. Due to the dispersion and internal Reflection of light different color reach the observer eye and rainbow is seen.

An important point to be noted here is that a rainbow is always formed in a direction opposite ti that if the Sun.

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Answer 2

• Formation of a rainbow:

1. Formation of a rainbow:Rainbow is caused by dispersion of sunlight by tiny water droplet's hanging in the atmosphere after a rain shower. The water droplets acts like a small prism. ... Due to the dispersion and internal Reflection of light different color reach the observer eye and rainbow is seen