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Thread: GR and Black hole

  1. #1 GR and Black hole 
    Forum Sophomore basim's Avatar
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    Hey i have a doubt.
    Why cant we see a round light circle around the black hole.
    According to GR light will travel in a curved path near a massive object. If that is correct then, we should be able to see a star behind a black hole, the black hole will act as a lense.

    plz correct me if i am wrong


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  3. #2  
    Forum Sophomore basim's Avatar
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    i would like to post this digram. For a better understanding.


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  4. #3  
    Forum Junior Twaaannnggg's Avatar
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    This actually does happen. There are some gravity lenses that don't actually produce a ring around a dense object but it quatruples the picture of a galaxy behind it. Takea look in google pictures
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  5. #4  
    Forum Sophomore basim's Avatar
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    hey thanks
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