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Per NCERT §7.9 eqn 7.39, the period of a satellite orbiting CLOSE to Earth's surface (h ≪ R_E) is approximately which?
A≈ 85 min
B≈ 24 h
C≈ 27 d
D≈ 365 d
Answer & Solution
Correct answer: A. ≈ 85 min
NCERT eqn 7.39: T_0 = 2π√(R_E/g) ≈ 84.6 min ≈ 85 min for Earth.
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