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

 

 

 

 
 
 
 
 

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Refraction of light by earths atmosphere is called atmospheric refraction.

Since the atmosphere bends the straight towards the normal the apparent position of star is slightly different from actual position which viewed near horizon.

Posted by

Sumit Saini

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