A) \[\frac{2}{5}\]
B) \[\frac{3}{5}\]
C) \[\frac{5}{4}\]
D) \[\frac{5}{2}\]
Correct Answer: B
Solution :
\[l=\frac{FL}{AY}\,\,\,\,\,\,\,\,\Rightarrow \,\,\,\,\,\frac{{{l}_{S}}}{{{l}_{cu}}}=\frac{{{Y}_{cu}}}{{{Y}_{S}}}\,\,\,\,(F,\,\,L\,\,and\,\,Y\,\,are\,\,constant)\]\[\,\therefore \,\,\,\,\,\,\,\frac{{{l}_{s}}}{{{l}_{cu}}}=\frac{1.2\times {{10}^{11}}}{2\times {{10}^{11}}}=\frac{3}{5}\]You need to login to perform this action.
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