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JEEMAIN and NEET
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JEEMAIN PAST PAPERS
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2001
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Q)
A heavy nucleus at rest breaks into two fragments which fly off with velocities in the ratio $3:1$. The ratio of radii of the fragments is :
( A ) $1:3^{1/3}$
( B ) $3^{1/3}:4$
( C ) $2:1$
( D ) $4:1$
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