Standard Books Physics Orbital Velocity MCQ Question with Solution

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)

Option A

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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STANDARD Physics Orbital Velocity MCQ Question