atmospheric refraction
Answers
Question:-
What is Atmospheric Refraction?
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Answer
- The refraction of light caused by the earth's atmosphere is called atmospheric refraction.
- When the sun rays passing through the atmosphere suffer refraction known as atmospheric refraction.
- It is caused by the difference is the dinsities of air in the differnt layes of the atmosphere.
Explanation:
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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.[1] This refraction is due to the velocity of light through air, decreasing (the refractive index increases) with increased density. Atmospheric refraction near the ground produces mirages. Such refraction can also raise or lower, or stretch or shorten, the images of distant objects without involving mirages. Turbulent air can make distant objects appear to twinkle or shimmer. The term also applies to the refraction of sound. Atmospheric refraction is considered in measuring the position of both celestial and terrestrial objects.
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