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  • Two wires of copper having length in the ratio 4:1 and their ratio as 1:4 are stretched by the same force. The ratio of longitudinal strain in the two will be-     &nb

Two wires of copper having length in the ratio 4:1 and their ratio as 1:4 are stretched by the same force. The ratio of longitudinal strain in the two will be-

      

Option: 1

1:16


Option: 2

16:1


Option: 3

1:64


Option: 4

64:1


Answers (1)

best_answer

 

  Stress\ \alpha\ Strain\ \alpha\ \frac{F}{A}

\text Ratio\ of\ Strain =\frac{A_2}{A_1}=\left ( \frac{r_2}{r_1} \right )^2

=\left ( \frac{4}{1} \right )^2=\frac{16}{1}

Posted by

Ritika Jonwal

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