a star can become a black hole if all of its mass is within its schwarzchil...
a star can become a black hole if all of its mass is within its schwarzchil radius . the sun which has a mass of 1.99*10^30kg , will eventually burn out and collapse . what would be its schawarzchilds radius , if it was possible for it to be a black hole ?
Homework Answers
we know, escape speed, ve = sqrt(2*G*M/R)
when, R = Rs( schwarzchil radius) ==> Ve = c
c = sqrt(2*G*M/Rs)
c^2 = 2*G*M/Rs
==> Rs = 2*G*M/c^2
= 2*6.67*10^-11*1.99*10^30/(3*10^8)^2
= 2950 m or 2.95 km
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