Question

The Young's modulus of a wire of length $L$ and radius $r$ is $Y$. If the length is reduced to $\frac{L}{2}$ and radius is $\frac{r}{2}$, then the Young's modulus will be

• A. $\frac{Y}{2}$
• B. $Y$
• C. $2Y$
• D. $4Y$

Answer 1

Answer: (B)

$Y$

Young's modulus is a property of a material. So it depends upon the nature of the material and not on geometrical dimensions.