The dependence of acceleration due to gravity $g$ on the distance $r$ from the centre of the earth, assumed…
The dependence of acceleration due to gravity $g$ on the distance $r$ from the centre of the earth, assumed to be a sphere of radius $R$ of uniform density is as shown in figures below
(1)
(2)
(3)
(4)
The correct figure is
(4)
(1)
(2)
(3)
Solution
$\because g \propto r$
and $g \propto \frac{1}{\mathbf{r}_2}$
(if $r < R$ )
(if $r > R$ )
So, the correct figure will be
(2)
(3)
(4)
The correct figure is