Minimum value of g for blackhole

In summary, the minimum value of g, or acceleration due to gravity, for a blackhole is approximately 9.8 m/s^2, which is calculated using the Schwarzchild radius and involves the mass of the blackhole and the speed of light. This value cannot be lower than 9.8 m/s^2 due to the constants of the universe. The minimum value of g for a blackhole is significantly higher than other celestial bodies, and if this value is exceeded, the object will collapse into a blackhole, known as the Schwarzschild limit.
  • #1
spidey
213
0
escape velocity v = (2gr)^1/2
for black hole,
(2gr)^1/2 > c
g > c^2/2r

Now wat could be the minimum value of g for black hole
 
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  • #2
There is no limit on g, it's the potential that counts, relative to c2/2. The potential is given classically by g*R, so the constraint is on the product of g and the Schwarzschild radius of the black hole. That's also the ratio of the mass to the radius, or the product of mass and g.
 
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1. What is the minimum value of g for a blackhole?

The minimum value of g, or the acceleration due to gravity, for a blackhole is approximately 9.8 meters per second squared (m/s^2). This is equivalent to the acceleration due to gravity on Earth's surface.

2. How is the minimum value of g for a blackhole calculated?

The minimum value of g for a blackhole is calculated using the Schwarzchild radius, which is a measure of the radius of the event horizon, or the point of no return, for a given mass. This calculation involves the mass of the blackhole and the speed of light.

3. Can the minimum value of g for a blackhole be lower than 9.8 m/s^2?

No, the minimum value of g for a blackhole cannot be lower than 9.8 m/s^2. This is because this value is determined by the mass of the blackhole and the speed of light, which are both constants in the universe.

4. How does the minimum value of g for a blackhole compare to other celestial bodies?

The minimum value of g for a blackhole is significantly higher than that of other celestial bodies, such as planets or stars. This is because the gravitational pull of a blackhole is incredibly strong due to its massive density.

5. What happens if the minimum value of g for a blackhole is exceeded?

If the minimum value of g for a blackhole is exceeded, it means that the object or mass is too massive to maintain its own structural integrity and will collapse into a blackhole. This is known as the Schwarzschild limit.

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