A black hole is an object whose gravitational field is so strong that even light cannot escape f...

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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 \( =5.98 \times 10^{24} \mathrm{~kg} \) ) have to be compressed to be a black hole [CBSE PMT 2014]
(a) \( 10^{-2} \mathrm{~m} \)
(b) \( 100 \mathrm{~m} \)
(c) \( 10^{-9} \mathrm{~m} \)
(d) \( 10^{-6} \mathrm{~m} \)
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