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Star mass affects event horizons diameter.But we know that Black hole's foundation is singularity so we can understand that singularity affects event horizon diameter.

Example:Imagine there are two stars, first star mass is 5 star mass second one is 7 star mass so If we think when they transform black hole both of them wiil be create singularity.So there are two same singularity.We know singularity affects event horizon diameter. How can we say star mass affects event horizon diameter.

How can we understand that r_{1}is longer than r ? (please look attachment)

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# How can we say star mass affects event horizon diameter ?

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