A) 1 : 8
B) 8 : 1
C) 4 : 1
D) 1 : 4
Correct Answer: A
Solution :
\[g=\frac{4}{3}\pi lGR\Rightarrow \frac{{{g}_{1}}}{{{g}_{2}}}=\frac{{{\rho }_{1}}}{{{\rho }_{2}}}\times \frac{{{R}_{1}}}{{{R}_{2}}}=\frac{d}{4d}\times \frac{r}{2r}=\frac{1}{8}\] \[\therefore g\therefore {{g}_{2}}=1:8\]You need to login to perform this action.
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