AIPMT MAINS2012Physics-Gravitation
AIPMT MAINS 2012 Physics Escape Velocity MCQ Question
Type: MCQ-conceptual-Medium-Class 11
If vₑ is escape velocity and v₀ is orbital velocity of a satellite for orbit close to the earth’s surface, then these are related by:
A
v₀ = √2vₑ
B
v₀ = vₑ
C
vₑ = √2v₀
D
vₑ = √2v₀
Correct Answer
Option D
Detailed Explanation
The escape velocity vₑ is related to the orbital velocity v₀ by the equation vₑ = √2v₀. This is derived from the fact that escape velocity is √2 times the orbital velocity for a circular orbit close to the Earth's surface.
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