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Schwarzchild radius is event horizon size of non-rotating black hole. Objects inside cannot escape, even light.
Formel
Apply r_s = 2GM/c²
Trinn-for-trinn guide
- 1Input mass (solar masses or kg)
- 2Apply r_s = 2GM/c²
- 3Results show black hole horizon size
Løste eksempler
Inndata
M = 10 solar masses
Resultat
r_s ≈ 30 km, density ≈10¹¹ kg/m³
Stellar-mass black hole
Vanlige feil å unngå
- ✕Assuming black holes are absolute sinks (Hawking radiation evaporates)
- ✕Neglecting spin (rotating black holes larger)
Ofte stilte spørsmål
What happens at event horizon?
Tidal forces increase dramatically; approaching observer experiences infinite time dilation.
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