NEET2016Physics-Gravitation
NEET 2016 Physics Escape Velocity MCQ Question
Type: MCQ-numerical-Medium-Class 11
The ratio of escape velocity at earth (ve) to the escape velocity at a planet (vp) whose radius and mean density are twice as that of earth is
A
1 : 4
B
1 : √2
C
1 : 2
D
1 : 2√2
Correct Answer
Option D
Detailed Explanation
Escape velocity is proportional to the square root of the planet's radius and density. Doubling both results in an increase by a factor of √2.
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