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NEET PAST PAPERS
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2014
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Q)
A block hole is an object whose gravitational field is so strong that even light cannot escape from it. To what approximate radius would earth (mass = $5.98 \times 10^{24}\; kg$) have to be compressed to be a black hole ?
( A ) $10^{-6} m $
( B ) $10^{-2} m $
( C ) 100 m
( D ) $10^{-9} m $
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