Q. A steel wire of length $3.2 \,m \left( Y _{ S }=2.0 \times 10^{11}\right.$ $Nm ^{-2}$ ) and a copper wire of length $4.4 \,M$ $\left( Y _{ C }=1.1 \times 10^{11} Nm ^{-2}\right)$, both of radius $1.4\, mm$ are connected end to end. When stretched by a load, the net elongation is found to be $1.4 \,mm$. The load applied, in Newton, will be: $\left(\right.$ Given $\left.\pi=\frac{22}{7}\right)$
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