Question

Why does sun appear oval or flattened at sunrise and sunset but appears circular at noon?

Answer 1

Question :-

Why does sun appear oval or flattened at sunrise and sunset but appears circular at noon?

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Answer :-

During sunrise or sunset :

➡The sun is very close to the horizon of the Earth from our view.

➡From that angle , the Sun rays take maximum time to reach the Earth particularly because the distance is more.

➡Hence the Sun rays suffer refraction through several particles present in the atmosphere.

➡This is the reason why the Sun appears oval shaped or flattened.

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At noon

➡At noon, the sun is directly overhead.

➡Hence the light rays have to travel the shortest distance to reach the Earth .

➡Thus the Sun appears circular because there is no scope of refraction in this case.

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Hope it helps :-)

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