A) \[g\propto r\]
B) \[g\propto {{r}^{2}}\]
C) \[g\propto {{r}^{-1}}\]
D) \[g\propto {{r}^{-2}}\]
Correct Answer: A
Solution :
Inside the earth \[g'=\frac{4}{3}\pi \rho Gr\] \ \[g'\propto r\]
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