A) \[\frac{R}{4}\]
B) \[\frac{3R}{4}\]
C) R
D) \[\frac{R}{8}\]
Correct Answer: C
Solution :
\[g'=g\,{{\left( \frac{R}{R+h} \right)}^{2}}=\frac{g}{4}\]. By solving h = R
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