The sun is seen on the horizon a little before sunrise.
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The sun is seen on the horizon a little before sunrise.
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Answer:
Hence, even when the sun is below the horizon while rising or setting, its rays reach us due to refraction and it appears to be on the horizon. Therefore, the sun is seen on the horizon a little before sunrise as well as for some time even after sunset.
Hence when the sun is below the horizon while rising or setting,it's rays used to refraction and it appears to be on horizon