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Physics · PYQ NEET UG 2025
हिन्दीA body weighs 48 N on the surface of the earth. The gravitational force experienced by the body due to the earth at a height equal to one-third the radius of the earth from its surface is :
Correct answer · Option 2
27 N
Explanation
Height \( h = R/3 \), so distance from center \( r = R + h = 4R/3 \). Gravity \( g' = g (\frac{R}{r})^2 = g (\frac{3}{4})^2 = \frac{9}{16} g \). Weight \( W' = \frac{9}{16} \times 48 = 27 \text{ N} \).
