Per NCERT §7.5 eqn 7.12, the acceleration due to gravity on Earth's surface is given by which expression?
Ag = M_E / G R_E²
Bg = G M_E / R_E²
Cg = G M_E / R_E
Dg = G M_E × R_E
Answer & Solution
Correct answer: B. g = G M_E / R_E²
NCERT eqn 7.12: g = G M_E / R_E² ≈ 9.8 m s⁻².
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