Why does the Sun have an elliptical shape at | vedclass

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Question

(A) At sunrise and sunset,the Sun is near the horizon.Light rays from the lower and upper parts of the Sun pass through different layers of the Earth'

Vedclass · Accepted Answer

Refraction

Vedclass · Answer

(A) At sunrise and sunset,the Sun is near the horizon.Light rays from the lower and upper parts of the Sun pass through different layers of the Earth's atmosphere with varying densities.Since the refractive index of the atmosphere decreases with height,the light rays from the lower part of the Sun are refracted more than those from the upper part.This unequal refraction causes the image of the Sun to appear distorted,specifically flattened or elliptical,rather than perfectly circular.

Why does the Sun have an elliptical shape at the time of sunrise and sunset? It is due to:

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