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  • The load versus elongation graph for four wires of the same material is shown in the figure. The thickest wire is represented by the line -  <img alt="" src="https://cdn.entrance360.

The load versus elongation graph for four wires of the same material is shown in the figure. The thickest wire is represented by the line - 

Option: 1

OD


Option: 2

OC


Option: 3

OB


Option: 4

OA


Answers (1)

best_answer

\begin{aligned} & l=\frac{F L}{A Y} \\ & \therefore \quad \ell \propto \frac{1}{r^2} \quad(y, L \text {, and } F \text { are constant) } \end{aligned}

i.e, for the same load, thickest wire will show minimum elongation. So, graph D represents the thickest wire.

Posted by

Deependra Verma

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