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Question 30635

JEE Physics · Medium

Circular Motion: Satellite — Circular Orbit MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Satellite — Circular OrbitMediumQuestion 30635

Question

For a satellite in circular orbit at radius r, the orbital speed is:

A
√(2GM/r)
B
√(GM/r)
Correct
C
GM/r
D
√(gr)

Correct answer

√(GM/r)

Explanation

Gravitational force = centripetal force: GMm/r² = mv²/r → v = √(GM/r).

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