Two spherical planets P and Q have the same uniform density r , masses M P and M Q , and…
Physics · JEE Advanced · NTA Exams — Gravitation
Two spherical planets P and Q have the same uniform density r, masses MP and MQ, and surface areas A and 4A, respectively. A spherical planet R also has uniform density r and its mass is (MP + MQ). The escape velocities from the planets P, Q and R are VP, VQ and VR, respectively. Then
- VQ > VR > VP
- VR > VQ > VP
Answer
(B) V R > V Q > V P
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