A) \[\frac{{{l}_{1}}}{{{l}_{2}}}=\frac{1}{2}\]
B) \[\frac{{{l}_{1}}}{{{l}_{2}}}=\frac{5}{8}\]
C) \[\frac{{{l}_{1}}}{{{l}_{2}}}=\frac{1}{3}\]
D) \[\frac{{{l}_{1}}}{{{l}_{2}}}=\frac{3}{8}\]
Correct Answer: A
Solution :
\[\left( \frac{A}{\rho {{l}_{1}}}+\frac{A}{\rho {{l}_{2}}} \right)=\frac{3}{8}\] (i) \[\frac{\rho ({{l}_{2}}+{{l}_{2}})}{A}=12\] (ii) Solving \[\frac{{{l}_{1}}}{{{l}_{2}}}=\frac{1}{2}\]You need to login to perform this action.
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