NEET2021Physics-Gravitation
NEET 2021 Physics Escape Velocity MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The escape velocity from the Earth’s surface is v. The escape velocity from the surface of another planet having a radius, four times that of Earth and same mass density is :
A
v
B
2v
C
3v
D
4v
Correct Answer
Option D
Detailed Explanation
Escape velocity is proportional to the square root of the radius for planets with the same density. Thus, v' = v√(R'/R) = 2v.
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