The ratio of accelerations due to gravity g_\1 : g_\2 on the surfaces of two planets is 5 : 2 and the ratio oftheir respective average densities \rho_\1 : \rho_\2 is 2 : 1. What is the ratio of respective escape velocities v_\1 : v_\2from the surface of the plants ?

WBJEE 2018 Physics Solved Paper

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The ratio of accelerations due to gravity g1:g2 on the surfaces of two planets is 5 : 2 and the ratio oftheir respective average densities ρ1:ρ2 is 2 : 1. What is the ratio of respective escape velocities v1:v2from the surface of the plants ?

5:2
√5:√2
5:2√2
25:4

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