Question

why sun appears bigger during sunset and sunrise​

Answer 1

Answer:

atmospheric refraction causes the sun to be seen while it is still below the horizon. so the sun refltes big .

Answer 2

Answer:

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Explanation:

During sunrise and sunset, light have to travel longer distance to reach observer. Loss of energy due to scattering is more for high frequency wave. Longer wavelength wave has minimum loss due scattering, and can travel long distance. Red color has longer wavelength, its intensity reach to the observer is more compare to other colors. Hence the sun appears red during sunrise and sunset.