STANDARDPhysics-Gravitation
STANDARD Physics Orbital Velocity MCQ Question
Type: MCQ-conceptual-Medium-Class 11
If vₑ is the 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 = v₀/2
D
v₀ = √(2vₑ)
Correct Answer
Option A
Detailed Explanation
Escape velocity, vₑ = √(2GM/Rₑ). The orbital velocity of a satellite close to the Earth's surface is v₀ = √(GM/Rₑ). Thus, v₀ = √2vₑ.
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