Question

Two wires of the same material have length and radius $(l,r)$ and $(2l,\frac{r}{2})$. The ratio of their Young's modulus is

• A. $1:2$
• B. $2:3$
• C. $2:1$
• D. $1:1$

Answer 1

The correct option is D $1:1$

Young's modulus is a material constant. So, length and radius do not affect its value. So, ratio has to be $1:1$.