What do we call a rainbow and how is it formed? In which case will it be steep and in which case it will be flat?

A rainbow is an optical phenomenon associated with the different refraction of light of different colors in water droplets. The type of rainbow depends on the shape of the drops. When falling in the air, large droplets flatten, that is, they lose their sphericity. The more the drops are flattened, the smaller the radius of the rainbow they form.

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