Teaching UKPSC Lecturer Mock Test Series 2024 Physics Gravitation Escape speed

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 × 10²⁴ kg) have to be compressed to be a black hole?

1

10^-6 m

2

10^-2 m

3

100 m

4

10^-9 m

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