Question

The variation of acceleration due to gravity $g$ with distance $d$ from centre of the earth is best represented by
($R=$ Earth’s radius) :

• A.
• B.
• C.
• D.

Answer 1

The correct option is A


$g_{\text{in}}=\frac{GMr}{R^3}$ (linear)
$g_{\text{out}}=\frac{GM}{r^2}$ (a curve such that g decreases as r increases)
where $r$ is the distance of point from the cetre of the earth at which $g$ is to be found out.