Question

The strain produced in the wire of length 60 cm is 1%, the change in the length of wire is

• A. 0.6 cm
• B. 6 cm
• C. 60 cm
• D. 0.016 cm

Answer 1

The correct option is A 0.6 cm

$\begin{array}{c}\text{Strain}=1\%\\ \text{dength}=60cm\\ \text{Strain}=\frac{\text{change in length}}{\text{length}}\\ \Rightarrow \Delta l=\left({10}^{-2}\right)\times 60cm\end{array}$

$=0.6cm$