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2. Ablack hole is an object whose gravitational fieldis so strong that even light cannot escape from it.To what approximate radius would earth(mass 5.98 x 1024 kg) have to be compresed tobe a black hole?AIPMT-2014](1) 10-9 m(3) 10-2 m(2) 10-6 m(4) 100 m

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