Question

Why do we see advanced sunlight and delayed sunset

Answer 1

because at the this time sunlight have to travel more path and it due to atmospheric refraction

Answer 2

Hey dear
Here is ur answer
The light rays journey is through vacuum and then through the atmosphere of the earth and then it is finally seen by us. In this case, vacuum will be a rare medium and the earth’s atmosphere with all its temperature changes, winds, different gases, will be a denser medium in comparison.
Hope it helps u
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