A) 1 : 2
B) 1 : 1
C) 2 : 1
D) 8 : 1
Correct Answer: D
Solution :
\[F=Y\times A\times \frac{l}{L}\]Þ \[F\propto \frac{{{r}^{2}}}{L}\] (Y and l are constant) \[\frac{{{F}_{A}}}{{{F}_{B}}}={{\left( \frac{{{r}_{A}}}{{{r}_{B}}} \right)}^{2}}\times \left( \frac{{{L}_{B}}}{{{L}_{A}}} \right)={{\left( \frac{2}{1} \right)}^{2}}\times \left( \frac{2}{1} \right)=\frac{8}{1}\]You need to login to perform this action.
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