Latest IIT-JEE Aptitude Question SOLUTION: Two spherical planets P andQ have the same unfirom density ,massesMP andMQ, an surface areas A and 4A, respectively. A spherical planet R also has unfirom density ï€

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Two spherical planets P andQ have the same unfirom density ,massesMP andMQ, an surface areas A and 4A, respectively. A spherical planet R also has unfirom density and its mass is (MP + MQ) . The escape velocities from the planets P, Q and R, are VP, VQ and V respectivley. Then
option
(A) VQ > VR > VP
(B) VR > VQ > VP
(C) VR/VP = 3
(D) VP /VQ =1/2

Asked In IIT-JEE MAN (11 years ago)

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