AIIMS 2019 Physics Gravitational Field MCQ Question

To find the gravitational field $g$ at a distance of 2000 km from the center of the Earth, we use the formula $g = \frac{GM}{r^2}$, where $G$ is the gravitational constant ($6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2$), $M$ is the mass of the Earth ($6 \times 10^{24} \, \text{kg}$), and $r$ is the distance from the center of the Earth (2000 km or $2 \times 10^6 \, \text{m}$). Calculating this gives $g \approx 3.06 \, \text{m/s}^2$, confirming option C as correct.

Options A, B, and D are incorrect as they do not match the calculated value; they may arise from miscalculations or incorrect assumptions about the distance or mass used in the gravitational field formula.