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Atom-sized Black Hole Mass (Posted on 2022-12-08) Difficulty: 3 of 5
Consider an imaginary scenario, where a black hole has the size of a hydrogen atom.
What would be the mass of the black hole?

See The Solution Submitted by K Sengupta    
Rating: 3.0000 (1 votes)

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re: my calculations Comment 3 of 3 |
(In reply to my calculations by Charlie)

I just did some more calculations.


That Hawking radiation over the 8.3 years will be about 10^33 Joules per year, or about 3 x 10^25 Watts on average (somewhat less at the beginning, somewhat more at the end, when it really pops).

Correction:

In going back to the website for Hawking radiation, the wattage seems to be only about 1 W. I previously thought that in disappearing, the mass was converted to energy, but most of it is converted into particle/antiparticle pairs, leaving little left for electromagnetic radiation.

Edited on December 8, 2022, 11:51 am
  Posted by Charlie on 2022-12-08 11:08:35

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