The Sun's elliptical shape at sunset can be adequately explained by
A)Fermat's principle.
B)the law of refraction.
C)both of these
D)neither of these

Question

Quizplus · Accepted Answer

The Sun's elliptical shape at sunset can be explained by both Fermat's principle, which deals with the path light takes to travel the least time, and the law of refraction, which describes how light bends when it moves between mediums of different densities, such as the Earth's atmosphere.

The Sun's Elliptical Shape at Sunset Can Be Adequately Explained