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Sahay Sir > Question Answers > NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions > Physics > Chapter 12 - Gravitation > 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 × 10^24 kg) have to be compressed to be a black hole?

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 × 10^24 kg) have to be compressed to be a black hole?

A spherical planet has a mass Mp​ and diameter Dp​ . A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity equal to: