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Physics · PYQ NEET UG 2024
हिन्दीThe mass of a planet is \( \frac{1}{10} \)th that of the earth and its diameter is half that of the earth. The acceleration due to gravity on that planet is :
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Correct answer · Option B
\( 3.92 \text{ m s}^{-2} \)
Explanation
Acceleration due to gravity is \( g = \frac{GM}{R^2} \). On the planet, \( g' = \frac{G(M/10)}{(R/2)^2} = \frac{4}{10} g = 0.4 \times 9.8 = 3.92 \text{ m s}^{-2} \).
