The approximate height from the surface of earth at which the weight of the body becomes 1/3 of its weight on the surface of earth is: [Radius of earth R = 6400 km and √(3) = 1.732] (a) 3840 km (b) 4685 km (c) 2133 km (d) 4267 km

Answer: (b). W'/W = (R/R+h)² = 1/3 R + h = √(3)R ⇒ h = (√(3)-1)R h = 0.732 × 6400 ≈ 4685 km So the answer is (b) 4685 km.

The approximate height from the surface of earth at which the weight… | JEE Main 2022 (24 Jun, Shift 1)

Q81JEE Main 2022 · 24 JUN · SHIFT 1Medium

Acceleration Due to Gravity

The approximate height from the surface of earth at which the weight of the body becomes $\frac{1}{3}$ of its weight on the surface of earth is:

[Radius of earth R = 6400 km and $\sqrt{3}$ = 1.732]

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Answer: (b)

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