Why sun has elliptical shape on the time when rising and sun setting? It is due to

Refraction

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Reflection

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Scattering

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Dispersion

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Solution

The correct option is B Refraction
In the morning or evening, the sun is at the horizon and refractive index in the atmosphere of the earth decreases with height. Due to this, the light reaching the earth's atmosphere, bends unequally, and the image of the sun get's distorted and it appears elliptical and larger.

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