A black hole is an object whose gravitational field is so strong that even light cannot escape from it. To what approximate radius would earth (mass=5.98×1024kg) have to be compressed to be a black hole?
A
10−9 m
B
10−6 m
C
10−2 m
D
100m
Medium
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Updated on : 2022-09-05
Solution
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Correct option is C)
For earth to be black hole the escape velocity should be at least equal to speed of light.