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Nature Of Radiation Emanating From A Body Is A Function Of It's Density

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#1 petrushkagoogol


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Posted 04 July 2016 - 04:21 AM

E = Energy 
m = Rest mass of an object 
Nature of radiation emanating from a body is a function of it's density. 
From relativity E = mc2 
E prop m 
Now m = volume x density 
Hence E prop density 
Hence black holes have more internal (gravitational potential energy) than regular stars like our Sun. This seems to be true since black holes from distant galaxies are known to generate X-Rays (taking into account redshift), whereas the Sun radiates more in the infra-red and visible spectrum ranges. 
Do you agree ?