1. Tardigrade
  2. Question
  3. Physics
  4. P is a point at a distance r from the centre of a solid sphere of radius R0. The gravitational potential at P is V. If V is plotted as a function of r, then the curve representing the plot correctly is:

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Q. $P$ is a point at a distance $r$ from the centre of a solid sphere of radius $R_{0}$. The gravitational potential at $P$ is $V$. If $V$ is plotted as a function of $r$, then the curve representing the plot correctly is:

Gravitation

Solution:

Gravitational potential at a distance $r$ outside a uniformly charged solid sphere varies inversely with $r$ and inside it is given by the expression $\left(K Q / 2 R^{3}\right)\left(3 R^{2}-r^{2}\right)$ hence option (D) is correct.