The condition for a uniform spherical mass m of radius r to be a black hole is [G = gravitational constant and g = acceleration due to gravity]
A
(2Gm/r)^(1/2) ≤ c
B
(2gm/r)^(1/2) = c
C
(2Gm/r)^(1/2) ≥ c
D
(gm/r)^(1/2) ≥ c

Question

The condition for a uniform spherical mass m of radius r to be a black hole is [G = gravitational constant and g = acceleration due to gravity]

Accepted Answer

(2Gm/r)^(1/2) ≥ c

Answer

(2Gm/r)^(1/2) ≤ c

Answer

(2gm/r)^(1/2) = c

Answer

(gm/r)^(1/2) ≥ c

AIIMS 2005 Physics Black Holes MCQ Question