A) 1 : 1
B) 2 : 1
C) 1 : 4
D) 1 : 2
Correct Answer: A
Solution :
\[F=Y\times A\times \frac{l}{L}\]Þ\[F\propto \frac{{{r}^{2}}}{L}\] (Y and l are constant) \\[\frac{{{F}_{1}}}{{{F}_{2}}}={{\left( \frac{{{r}_{1}}}{{{r}_{2}}} \right)}^{2}}\left( \frac{{{L}_{2}}}{{{L}_{1}}} \right)={{\left( \frac{2}{1} \right)}^{2}}\left( \frac{1}{4} \right)=1\]Þ \[\frac{{{F}_{1}}}{{{F}_{2}}}=1:1\]You need to login to perform this action.
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