Two spherical planets P and Q have the s...

Two spherical planets P and Q have the same uniform density `rho` masses `M_p` and` M_q` and surface areas A and 4A respectively A spherical planet R also has uniform density `rho` and its mass is `(M_p+M_q)` the escape velocities from the planets P,Q and R are `V_p,V_Q,V_R` respectively then

`V_QgtV_RgtV_p`

`V_RgtV_QgtV_p`

`V_R/V_P=3`

`V_P/V_Q=1/2`

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The correct Answer is:

B, D

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