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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2016
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Q)

The ratio of escape velocity at earth $(v_e)$ to the escape velocity at a planet $(v_p)$ whose radius and mean density are twice as that of earth is :


( A ) $1: \sqrt{2}$
( B ) $1 : 2\sqrt{2}$
( C ) $ 1 : 4$
( D ) $1 : 2 $

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