A) \[G{{M}_{0}}/D_{0}^{2}\]
B) \[4mG{{M}_{0}}/D_{0}^{2}\]
C) \[4G{{M}_{0}}/D_{0}^{2}\]
D) \[Gm{{M}_{0}}/D_{0}^{2}\]
Correct Answer: C
Solution :
\[g=\frac{GM}{{{R}^{2}}}=\frac{G{{M}_{0}}}{{{({{D}_{0}}/2)}^{2}}}=\frac{4G{{M}_{0}}}{D_{0}^{2}}\]
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