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MHT CET 2026 (20 Apr, Shift 1) · Acceleration Due to Gravity

Acceleration Due to Gravity question from MHT CET 2026 (20 Apr, Shift 1)

Q7MHT CET 2026 · 20 APR · SHIFT 1Medium

Acceleration Due to Gravity

The percentage decrease in the weight of a body when taken to a height of $48$ km above the surface of the earth is (Radius of the earth is $6400$ km)

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Answer: (b)

For $h \ll R$ : $g_h \approx g\left(1 - \frac{2h}{R}\right)$ , so fractional decrease $= \frac{2h}{R}$ .
$\frac{2 \times 48}{6400} \times 100\% = 1.5\%$
So the answer is (b) $1.5\%$ .

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