Question

What is atmospheric refraction ? What causes atmospheric refraction ?

Answer 1

Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of height. ... Astronomical or celestial refraction causes astronomical objects to appear higher above the horizon than they actually are.

Explanation:

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Answer 2

Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of height. Turbulent air can make distant objects appear to twinkle or shimmer. The term also applies to the refraction of sound.

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