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NEET Physics · Hard

Gravitation: Orbital Mechanics MCQ

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Orbital MechanicsHardQuestion 6264

Question

Orbital speed of Earth (mass M_sun, distance r):
  1. A
    √(GM_sun r)
  2. B
    GM_sun/r
  3. C
    √(GM_sun/r)
    Correct
  4. D
    2πr/T

Correct answer

√(GM_sun/r)

Explanation

v_orbital = √(GM_sun/r). Both expressions √(GM/r) and 2πr/T are correct. Primary formula: √(GM_sun/r).

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