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What is atmospheric refraction ? Explain with the help of a lablled diagram that the position of a star as seen by us is not its true position​

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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.
  • Astronomical or celestial refraction causes astronomical objects to appear higher above the horizon than they actually are.


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