A) \[{{10}^{-9}}m\]
B) \[{{10}^{-6}}\,m\]
C) \[{{10}^{-2}}\,m\]
D) \[100\,m\]
Correct Answer: C
Solution :
Problem Solving Strategy For the black hole, the escape speed is more than c (speed of light). |
We should compare the escape speed with the (Note that the escape speed should be at least just greater than c) |
New radius of the earth] |
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