NEET Physics Escape Velocity MCQ Question
The ratio of accelerations due to gravity g₁: g₂ on the surface of two planets is 5: 2 and the ratio of their respective average densities ρ₁: ρ₂ is 2: 1. What is the ratio of respective escape velocities v₁ / v₂ from the surface of the planets?
5: 2
√5 : √2
5: 2√2
25: 4
Correct Answer
Detailed Explanation
Escape velocity is proportional to the square root of the product of gravitational acceleration and radius, which is related to density.
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