Q 11-07-006NEETNEET 2024Top questionEasy
The mass of a planet is $\dfrac{1}{10}$th that of the earth and its diameter is half that of the earth. The acceleration due to gravity on that planet is :
Answer: (B) $3.92\ \text{m s}^{-2}$
$g = \dfrac{GM}{R^2}$, so
$$g_p = g\cdot\frac{M_p}{M}\cdot\left(\frac{R}{R_p}\right)^2 = 9.8 \times \frac{1}{10} \times 2^2 = 3.92\ \text{m s}^{-2}$$
Solution by Sreeraj P, M.Sc Physics