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Two wire of same diameter of same material having the length l and 2l. If the Force F is applied on each, the ratio of the work done in the two wires will be - 

Option: 1

1:2


Option: 2

1:4


Option: 3

2:1


Option: 4

1:1


Answers (1)

best_answer

W=\frac{1}{2} \mathrm{Fe}

\therefore \quad W \propto l \text { ( } F \text { is constant) }

\therefore \quad \frac{W_1}{W_2}=\frac{l_1}{l_2}=\frac{l}{2 l}

\frac{W_1}{W_2}=\frac{1}{2}

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