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\mathrm{P} is a point at a distance \mathrm{r} from the centre of a solid sphere of radius \mathrm{R_0}. The gravitational potential at \mathrm{P \: is \: V}. If  \mathrm{ V} is plotted as a function of \mathrm{r}, then the curve representing the plot correctly is

Option: 1


Option: 2


Option: 3


Option: 4


Answers (1)

best_answer

\mathrm{V=\left\{\begin{array}{l} -\frac{G M}{r}, r \geq R_0 \\ -\frac{G M}{2 R_0^3}\left(3 R_0^2-r^2\right), r<R \end{array}\right.}

Hence option 4 is correct.

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Sayak

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